Hazardous Chemical Waste Management Reference Guide
Contents
1. constituent CHEMICAL NAMK S CONCENTRATION LOWER UPPER Does the waste contain any of the following metals PCBs or Dioxins Circle them or check none Antimony Arsenic Barium Beryllium Bromine Cadmium Chlorine Chromium Cobalt Copper Dioxin Fluorine Iodine Lead Manganese Mercury Molybdenum Nickel Potassium Selenium Silicon Silver Sodium Sulfur Thallium Vanadium Zinc NONE Do you need another container s dropped off 2 5 GAL 5 GAL OTHER Form BHS 100 11 97 Blanket Pickup Request Instructions one form per waste type 1 Today s Date 2 Gen Requested by 3 Process 4 Name of Waste 5 Physical State 6 Hazard Category 7 Frequency of Pickup 8 Amount Generated 9 Chemical Description Hazardous Chemical Wast The date you filled out the form Fill in the month day and year While it is the researcher s responsibility to complete the hazardous waste label a disposal form may be completed by administrative staff This section needs to be completed by the person who will take responsibility for the disposal procedure Provide the name phone number and department of the person requesting the pickup Provide the building and room number of the location where the waste will be picked up This may differ from the building or room where the waste was produced as provided on the hazardous waste label State the activity involved in generating the waste This is required on a blanket pickup request fo2. 8 3 GeO Gi ETAETA 3 Module Overview Purpose Module Objectives Regulations and Their Impact to Stanford Overview Existing Regulations Relevant Agencies Chemical Waste Management in Your Lab Satellite Accumulation Area SAA Waste Accumulation Area WAA Wastes that Cannot be Stored at EH amp S Strategies Needed to Handle Chemical Waste Preventing and Handling Emergencies EH amp S Support Services Reference Materials Common Questions this Training Program Addresses Identification of Hazardous Chemical Waste eeeeeeeeeeeeee 9 Objectives Overview Recognizing Wastes Rad Chem Bio Hierarchy Excerpt from the Non Hazardous Waste List Empty Container Decision Tree Hazardous Waste Label Additional Resources The Generator Chemical Safety Database Determining the Primary Hazard Category MSDSs Stanford Safety Manual Summary Questions Minimization of Hazardous Chemical Waste ccccccceeeeees 22 Objectives Overview Minimization and Cost Containment Manufacturers Recommended Expiration Date Minimization and Cost Containment Chart Summary Questions Chapter 3 Chapter 4 Appendix A Appendix B Appendix C Appendix D Containment of Hazardous Chemical Waste cc ccceeeceeeeeeee 25 Objectives Overview Containers Compatibility and Accumulation Container Criteria Compatibility Accumulation Criteria Accumulation Limits Container Compatibility and Accumulation Criteria Chart Locating Hazardo
3. 90 10 20 Zinc water 50 ppm 600 ml 80 Methanol water remainder 55 Example 3 Chloroform 6 Methylene Chloride 4 Acetonitrile 18 Zinc 7 5 ppm Methanol 44 water 28 4 Physical State Check only one Information on physical state is legally required The labels and forms need to be explicitly marked Check solid liquid if the waste is two phase 5 Hazard Category Check only one Check the one that is the most hazardous also known as the primary hazard Use your best judgment the Chemical Safety Database and the Determining the Primary Hazard Category sheet or a Material Safety Data Sheet to decide on the hazard category If no hazard can be clearly identified check toxic 6 Date Moved to WAA Do not fill in This section will be completed by the person who actually transports the waste to the WAA It applies only to areas identified and posted as Waste Accumulation Areas Hazardous Chemical Waste Management Reference Guide for Laboratories 14 ADDITIONAL SOURCES OF INFORMATION Two important additional sources of information when identifying a waste in order to manage it correctly include consulting the waste generator as well as the Chemical Safety Database The Waste Generator The waste generator is the person who created the waste material The waste generator is responsible for hazardous waste determination Chemical Safety Database The hazard category can be difficult to de
4. Determining the Primary Hazard Category d All of the above If no hazard can be clearly identified the default hazard category is a Corrosive b Flammable c Oxidizer d Toxic Hazardous Chemical Waste Management Reference Guide for Laboratories 20 2 e Minimization of Hazardous Chemical Waste OBJECTIVES Do you know how to do the following If so skip ahead to the Containment of Hazardous Chemical Waste section If not continue on here with Minimization of Hazardous Waste e Recognize your responsibility in regard to minimization of hazardous chemical waste e Recognize ways to reduce waste while using chemicals in the lab by modifying inventory purchasing accumulation and recycling procedures e Recognize that limiting quantity and mixtures of wastes reduces costs in transportation treatment and disposal OVERVIEW Stanford is required to develop and implement a plan to minimize the quantity and toxicity of its hazardous waste Part of this plan requires that the individual researcher take responsibility to minimize his or her waste Refer to the Minimization and Cost Containment Chart for these requirements Minimizing the quantity and toxicity of chemical wastes and mixtures saves money reduces long term liability and minimizes the amount of waste generated at the university It also reduces the costs of specialized transportation and treatment measures MINIMIZATION AND COST CONTAINMENT Refer to the Min
5. and arrange for its disposal
6. can also be found in the Chemical Safety Database Compatible waste and non waste chemicals can be accumulated in the same secondary container if space is limited in your lab e Compatibility Criteria Waste must be compatible with The original contents of a container e The container e Other wastes in the container e Wastes in all primary containers that are stored in a common secondary container Put acids and mixtures of acids and metals in separate primary and secondary containers Don t put e Hydrofluoric acid in glass Strong solvents in plastic e Strong acids in metal Chem waste in red bio waste bag Put primary containers in secondary containers segregated by storage group Accumulation Criteria The accumulation period begins when a Hazardous Waste label is completed and placed on a container Accumulate all hazardous chemical waste in secondary containment except solids such as gloves large chunks of solid material and gas cylinders Secondary containers must be able to hold 110 of the volume of a container accumulated in it If more than one container is placed in it then it must be able to hold 150 of the volume of the largest single container or 110 of the combined volume of the containers placed in it whichever is greater There are no regulations limiting where waste should be placed provided that they remain under the control of one PI thus they should be put where it makes best
7. guidelines and neutralize each other c Segregated per minimization cost containment guidelines and be compatible with each other d Compatible with each other and have a pH between 2 and 12 5 Secondary containment is required for and mobile solids that could readily disperse if released from primary containers a Gases b Liquids c Sludges d Contaminated gloves The same secondary container can hold Wastes and non wastes Wastes and non wastes from different storage groups 90 of the combined volume of the primary containers it holds Wastes from different storage groups aoe The Locating Commonly Used Hazardous Waste Containers chart can be a Used to identify containers that are hazardous b Used to locate on campus sources of containers with the volume and material construction you need c Used to match containers to hazardous waste d Used to locate the nearest vendor off campus who sells appropriate containers Hazardous Chemical Waste Management Reference Guide for Laboratories 28 6 Match the characteristics in the list at right to the containers on the left by writing the letters of the characteristics under the container names CONTAINERS PRIMARY CONTAINERS SECONDARY CONTAINERS True or False CHARACTERISTICS Sigg Roan For liquids tubs barrels and trays are OK No rust or leaks No leaks when inverted or tipped Screw caps or tight lids are required For solids boxes and containers
8. have the waste removed from your lab so you should submit a pickup request form prior to 8 months Waste Accumulation Area WAA such as an outdoor holding area this category requires additional training in order to operate e Can accumulate any amount of waste e Weekly written inspections must be performed e The accumulation area must be posted as a WAA specially constructed and managed to comply with requirements to store and dispose of wastes e Must be managed by personnel trained to meet regulatory requirements with additional training beyond the training presented in this module e The accumulation time is limited to 90 days Wastes that Cannot be Stored at EH amp S The Environmental Safety Facility is not permitted nor designed to store the following types of waste e Wastes or materials of unknown composition Unknown wastes must be analyzed by EH amp S This analysis is expensive and time consuming Unknown wastes will remain in the lab until analysis is complete Hazardous Chemical Waste Management Reference Guide for Laboratories 5 e Compressed gasses Follow the instructions in the Minimization and Cost Containment Chart for managing compressed gas cylinders These wastes must be accumulated in the laboratory until transportation off site can be arranged Strategies For Handling Chemical Waste Regulatory compliance is required and every person who generates hazardous waste must be trained However c
9. with lids are OK No beakers coffee cans or flasks For solids sealable plastic bags are OK Required for all wastes except immobile solids e g gloves large chunks of material gas cylinders Open only when adding waste No parafilms for seals ___7 Accumulation limits are as follows Waste may not be accumulated in a laboratory area for more than 9 months Allow up to a month for EH amp S to act after you submit a pickup request form Accumulation periods begin when a Hazardous Waste label is completed and placed on a container Hazardous Chemical Waste Management Reference Guide for Laboratories 29 4 Disposal of Hazardous Chemical Waste OBJECTIVES Do you know how to do the following If so you are finished with this module If not please continue e Determine if a chemical waste is not hazardous and therefore can be placed in the solid waste stream i e normal trash or poured down the drain e Determine whether to schedule a blanket pickup or to use a standard pickup request form e Correctly fill out a Standard Hazardous Chemical Waste Pickup Form BHS 101 e Correctly fill out a Blanket Hazardous Chemical Waste Pickup Form BHS 100 OVERVIEW There are three resources for waste disposal The Non Hazardous Waste List e The Blanket Hazardous Chemical Waste Pickup Form BHS 100 e The Standard Hazardous Chemical Waste Pickup Form BHS 101 NON HAZARDOUS WASTE LIST AND TREATMENT GUIDE All chemical
10. 0 REGULATIONS AND THEIR IMPACT TO STANFORD Overview There are numerous governmental regulations that govern how to identify minimize contain and dispose of hazardous chemical waste While neither Stanford nor EH amp S make these rules EH amp S does function as an intermediary between government regulators and the campus community in order to facilitate compliance EH amp S has a staff of professionals who routinely review new and proposed regulations to determine their impact to Stanford EH amp S has responsibility with oversight from the University Committee on Health and Safety to interpret regulatory issues and to develop and distribute compliance training programs It is a School s department s or PI s responsibility to request or conduct the training and the researcher s responsibility to perform the procedures outlined in the training Existing Regulations The framework for hazardous waste regulation was established in 1976 by the Federal Resource Conservation and Recovery Act This Act introduced the concept that the generator of a waste is responsible for proper waste management from cradle to grave 1 e from lab to disposal site That basic concept remains in force today Since 1976 this act has changed as hazardous waste management responsibilities have grown In addition there are local requirements pertaining to solid waste management and sewer discharges Relevant Agencies The California Departmen
11. 0 Use blanket pickup forms if e You will generate a consistent type of waste and can predict pickup needs e You will generate waste amounts that will require frequent at least every 2 months and at least 5 gallons month pickups Use standard pickup forms if e Conditions for using a blanket pickup are not present Standard Hazardous Chemical Waste Pickup Form It is the researcher s responsibility to ensure that accumulation limits on hazardous chemical waste are not exceeded Containment and disposal regulations are based on time limits rather than container or lab accumulation capacity Hazardous chemical waste may not be accumulated for more than 9 months in a lab or shop Because it may take up to one month for EH amp S to respond to your request a Hazardous Chemical Waste Pickup form should be sent to them prior to 8 months Researchers may choose to request pickups more frequently than every 8 months Expect the pickup to occur within a month after EH amp S has received your request If the waste is not picked up call EH amp S 5 7520 to follow up The waste remains your responsibility until it is picked up This reference guide covers how to complete a Standard Hazardous Chemical Waste Pickup Form transfer information from hazardous waste labels and add the additional information required UNKNOWN WASTES If you have a unidentified chemical waste that you want to dispose of attempt to identify the contents by asking
12. All of the above 5 Return unneeded chemicals and to save unnecessary expenses a Catalogs to vendors b Refillable gas cylinders to manufacturers c Empty containers to vendors d All of the above Hazardous Chemical Waste Management Reference Guide for Laboratories 23 3 e Containment of Hazardous Chemical Waste OBJECTIVES Do you know how to do the following If you do go on to the Disposal of Hazardous Chemical Waste section If not continue on here e Determine which primary and secondary container to choose for a given hazardous waste e Locate an appropriate primary and secondary container e Comply with accumulation requirements OVERVIEW There are resource materials to guide you when selecting containers the Container Compatibility and Accumulation Criteria Charts and the Locating Commonly Used Hazardous Waste Containers Chart CONTAINERS COMPATIBILITY AND ACCUMULATION It is the individual researcher s responsibility to obtain primary and secondary containers in good condition that are compatible with the wastes stored in them Primary and secondary containers must meet all criteria on the Container Compatibility and Accumulation Criteria Charts Container Criteria Follow the criteria from the Container Compatibility and Accumulation Criteria Charts when selecting primary and secondary containers Almost any container with a proper closure will work for storing hazardous chemical waste as long as these criteri
13. BHS 101 A sample of a completed form is in the Hazardous Chemical Waste Management Reference Guide for Laboratories along with detailed instructions for each item Hazardous Chemical Waste Management Reference Guide for Laboratories 8 fee EDan ara 1 Identification of Hazardous Chemical Waste OBJECTIVES Do you know how to do the following If you do skip ahead to Minimization of Hazardous Waste section If you do not continue on in this section Determine whether a material must be considered a hazardous chemical waste by using the Radiological Chemical Biological Hierarchy the Non Hazardous Waste List and the Empty Container Decision Tree Correctly fill out a Stanford Hazardous Waste Label Determine the correct hazard category OVERVIEW In order to properly manage hazardous chemical waste you must first learn the various identification steps in order to Determine if a material is now as a waste Know if your waste is a chemical waste Determine if it is hazardous Get information about the specific hazard category and identify it in order to complete a hazardous waste label The identification section of this training introduces you to resource materials that will help make these determinations RECOGNIZING WASTES Remember that the requirements described in this guide do not apply until a material becomes a waste A waste is defined as a material that has no intended use or reuse After you have determined
14. STANFORD UNIVERSITY HAZARDOUS CHEMICAL Waste MANAGEMENT REFERENCE GUIDE For LABORATORIES January 1998 Department of Environmental Health and Safety 650 725 7520 NOTICE This reference guide is intended to provide guidance regarding the management of hazardous chemical wastes generated in laboratories at Stanford This guide is based in part upon existing federal and state hazardous waste management laws and regulations In some instances guidelines presented in this manual extend beyond the minimum management standards mandated by law Such guidelines are designed to create straightforward management practices and to ensure full compliance with applicable laws and regulations In addition federal state and local hazardous waste management laws and regulations change over time Similarly the interpretation of such laws and regulations by regulatory agencies may change over time Accordingly it is important that persons generating hazardous chemical wastes remain alert to regulatory developments and comply with changes in guidelines that may be developed by Stanford s Environmental Health and Safety Department URL gt gt gt _ http web stanford edu dept EHS Produced in collaboration with Stanford Instructional Television Network Copyright 1994 by Department of Environmental Health and Safety Revised 1997 amp 1998 Printed in the United States of America Contents Chapter 1 Chapter 2 Introdiction
15. a are met Remember to attach hazardous waste labels to the primary containers only e Container Criteria PRIMARY CONTAINERS SECONDARY CONTAINERS e Screw caps or tight lids are required Required for all wastes except immobile solids e g No parafilms or foil for seals gloves large chunks of material and gas cylinders Open only when adding waste For solids boxes and containers with lids are OK No leaks when inverted For liquids tubs barrels and trays are OK No beakers coffee cans or flasks If holding a single primary container then must hold 110 of No tust or leaks the volume of that container For solids sealable plastic bags are OK If holding more than one container then must hold 150 of the volume of largest container or 110 of the combined volume of all containers whichever is greater Hazardous Chemical Waste Management Reference Guide for Laboratories 24 Compatibility Follow the regulations on container compatibility Wastes within primary containers must be segregated according to minimization and cost containment guidelines in addition to meeting the compatibility regulations These guidelines have been incorporated into the Container Compatibility and Accumulation Criteria Charts A secondary container can only hold primary containers of compatible wastes All waste accumulated in a common secondary container must be from the same storage group Storage group information on most chemicals
16. abase classification of 13 then it is not pyrophoric 6 If there is no clear primary hazard for a mixture then it is toxic Hazardous Chemical Waste Management Reference Guide for Laboratories 18 Material Safety Data Sheets MSDS Material Safety Data Sheets which are available from the vendor or from the Dept of Environmental Health and Safety provide information about the physical characteristics of a chemical which can be useful in determining the hazards of a chemical waste MSDSs also contain important emergency response information You can get training on the use of the MSDSs from your department s Chemical Safety Training Program You will want to use the MSDSs together with the Stanford Safety Manual as well as your professional knowledge and judgment to determine both the hazard category and the storage group MSDSs are maintained differently in each department Check with your department or principle investigator if you are unsure of where to find them Stanford Safety Manual The Stanford Safety Manual has very detailed information on managing hazardous materials in Chapter 4 Chemical waste is considered to be hazardous material and must meet the standards that apply to all other hazardous materials The Stanford Safety Manual has a chapter on preventing and handling emergencies as well as detailed descriptions of all the services that EH amp S provides The Stanford Safety Manual should be available in each lab if n
17. aste to the container write on the sheet the mass or volume and quantitative description of the waste For example an entry might read 400 ml of 60 chloroform 40 methylene chloride example given in Appendix D When the container is full or nearing the end of accumulation time the research group will be able to calculate the concentration or volume of each constituent and enter it onto the hazardous waste label Be sure to complete the attachment sheet each time waste is added remember an inspector will cite you for not completing the label if it is obvious that the volume of waste on the attachment sheet is less than in the container Regardless of the approach you use to track the contents of the container there are several acceptable ways of expressing the waste concentration of the final mixture The chart on the next page gives examples of 3 different ways to describe one waste You may come up with your own method as long as you indicate 100 of the constituents in the container Hazardous Chemical Waste Management Reference Guide for Laboratories 13 EXAMPLES OF HOW TO DESCRIBE CHEMICAL NAMES ON A LABEL J CHEMICAL NAME CONC OR PPM Example 1 Chloroform Methylene Chloride 60 40 400 ml Acetonitrile water 90 10 800 ml Zinc water 50 ppm 600 ml 80 Methanol water remainder 2 200 ml Example 2 Chloroform Methylene Chloride 60 40 10 Acetonitrile water
18. astes Check inventory before ordering to avoid duplication Buy reusable gas cylinders It costs 1 000 2 000 Return cylinders to manufacturers if valves are defective or each to dispose of lecture bottles and cylinders for refills Get specialty fills in larger cylinders that can be Some vendors will not take them back returned Purchase only as much as you need Bulk discounts may cost more due to eventual removal costs Check catalogs for quantity choices Select the container size appropriate for your use Reduce the scale of the experiment Use micro scale glassware Return unused chemicals to vendor Even if you are not reimbursed Stanford saves disposal costs Make sure the container is labeled and in good condition Use alternate research methods Know hazards of chemicals Choose less hazardous materials for investigations and plan to use them Select less hazardous chemicals Less hazardous substitutes are available for degreasing glass washing and preserving biological specimens Non mercury containing thermometers are available and minimize hazardous waste from thermometer breakage Segregate non halogenated and halogenated Treatment procedures have different costs Segregation solvents allows some solvents to be recycled Segregate acids from mixtures of acids and metals Keep hydrochloric acid separate from sulfuric acid contaminated with copper e Solvent Recycling Call EH amp S 5 7520 to discu
19. azardous Chemical Waste Management Reference Guide for Laboratories 7 Q Q Q Q Q I hear conflicting information about using containers Where do I get information Use the Container Compatibility and Accumulation Criteria Chart to check your responsibilities in regard to containers Where can I find containers that are the right size or construction The Locating Commonly Used Hazardous Waste Containers Chart has a list of containers available on campus and where to find them How long can waste be stored in the lab Nine months The Container Compatibility and Accumulation Criteria Chart has detailed information on this Nine months is much too long for me to accumulate many of my wastes What can I do You can complete a Blanket Hazardous Chemical Waste Pickup Form BHS 100 to request automatic pickups as long as they need to occur at least every 2 months the volume is significant greater than 5 gallons per month and your waste does not vary significantly in composition or you can always request a pickup any time before 8 months How will I know how to fill out the Blanket Hazardous Chemical Waste Pickup form A sample of a completed form is in the Hazardous Chemical Waste Management Reference Guide for Laboratories along with detailed instructions for each numbered item How do I get rid of the waste containers that I have been storing You will need to fill out a Standard Hazardous Chemical Waste Pickup Form
20. cide between standard or blanket types Which of the following describe criteria for selecting blanket pickups Consistent generation of a waste not highly variable in composition Frequent at least every 2 months generation of the same waste High volume generation of various waste Waste accumulated in the same room where it was produced aogp 6 Regular pickup forms may be completed and sent in at any time Plan for EH amp S to take up to to schedule and pick up your waste a 3 months b 8 months c 7 days d 1 month 7 Ifthe contents of a material are not established it may have to be considered an unknown What is the best action to take with an unknown waste a Fill out a Standard Hazardous Chemical Waste Pickup form to have the waste picked up b Find out who may have produced the unknown determine its composition label it and arrange for its disposal c Call EH amp S to report it so that they can plan to test it before picking it up d Call your Lab Safety Partner because it is their responsibility to handle unknowns Hazardous Chemical Waste Management Reference Guide for Laboratories 37 Appendix A Non Hazardous Waste List URL gt http web stanford edu dept EHS prod enviro waste nohaz html or you can reach it by going to the EH amp S Home Page at http web stanford edu dept EHS click on the Environmental Program then click on the List of Non Hazardous Waste Appendix B Answers t
21. ct an automatic pickup interval to match your needs This form needs to be filled out only once for a given waste The waste described on the form should specify a range for constituents and concentrations Fill out a separate form for each type of waste Blanket requests are not applicable to wastes which are not reasonably predictable READ THROUGH THE NEXT TWO PAGES TO LEARN HOW TO COMPLETE A BLANKET HAZARDOUS CHEMICAL WASTE PICKUP FORM Hazardous Chemical Waste Management Reference Guide for Laboratories 32 BLANKET HAZARDOUS CHEMICAL WASTE PICKUP Use One Form Per Waste Send to Chemical Waste Program ESF MC 8007 Phone 5 7520 Fax 5 3468 1 TODAY S DATE MO DAY YR 2 GENERATOR REQUESTED BY NAME PHONE DEPT BLDG ROOM 3 PROCESS GENERATING WASTES 4 NAME OF WASTE 5 PHYSICAL STATE SOLID LIQUID SOLID LIQUID GAS 6 HAZARD CATEGORY CORROSIVE FLAMMABLE OXIDIZER AIR WATER REACTIVE TOXIC 7 ANY SPECIAL ROOM ACCESS INSTRUCTIONS 8 FREQUENCY OF PICKUP WEEKLY MONTHLY OTHER 9 AMOUNT GENERATED 10 CHEMICAL DESCRIPTION Provide full chemical names If using a brand name supply MSDS with this request Do not use abbreviations or chemical formulas List all known constituents including water if the waste is aqueous Provide estimated percent concentration for each constituent using a range of expected values Be sure to provide both lower and upper expected concentration for each
22. he concentration of the constituents and put it right on the label Approach 2 If you place various waste mixtures into one container you may be able to accurately estimate the concentration of the final mixture simply by tracking which constituents are added to the container To ensure that the estimation is reasonably accurate to within a few percent you should consider factors such as the number of researchers adding waste to the container the length of time it takes to fill the container and the number of chemicals added to the container Make a list of all the chemicals that you might add to the container example given in Appendix D Place a copy of this list on the container when you put a hazardous waste label with sections 1 2 4 amp 5 completed on it As you add waste to the container place a check mark next to the names of the chemicals that you are adding When the container is full or nearing the end of accumulation time someone from the research group will have to estimate the final concentration of the checked constituents and enter it onto the label Approach 3 When approaches and 2 will not accurately describe the waste you can track the volume and percentages of each waste that is added to the container on a separate list then use this information to complete the label Attach a blank piece of paper to the container when you place a hazardous waste label with sections 1 2 4 amp 5 completed on it Each time you add w
23. imization and Cost Containment Chart at the start of each investigation until you become accustomed to integrating the procedures it describes Plan to generate waste in small amounts at low risk in terms of hazard category and at a low disposal cost Integrate minimization techniques into all laboratory activities involving chemicals inventory purchasing use accumulation and solvent recycling Manufacturers Recommended Expiration Date If a chemical has passed its expiration date it needs to be evaluated to make sure it is not now a waste Use the following guidelines for making this determination e If the chemical is usable for its originally intended purpose and is still within specifications it is not a waste e If the chemical can be re certified or tested and is within specifications it is not a waste e The useful life of peroxide forming compounds such as ethers and tetrahydrofuran is measured from the time the original container is opened and depends on the amount of exposure to air Once opened follow the disposal guidelines found in the Stanford Safety Manual Hazardous Chemical Waste Management Reference Guide for Laboratories 21 MINIMIZATION AND COST CONTAINMENT e Inventory Dispose of expired or unused chemicals When you leave the University do not leave unidentified and unneeded materials behind Maintain good condition of labels and containers Clean up at the end of every day to avoid creating excess w
24. ions on Reverse Side HAZARDOUS WASTE LABEL SSS EEE All hazardous chemical waste must be properly labeled Most re of Stanford s regulatory citations for waste are due to absent ST CHEMICAL NAMEG orice AL cemicok an cence or incorrectly filled out labels The labels have instructions on iaciaeipeiiiniintieaey the back Always attach completed labels to primary waste containers never to secondary containers Instructions for each point on these labels follow below Hazardous Waste labels can be ordered from EH amp S or produced in your department They must contain the words Hazardous Waste and the information requested in items 1 through 5 as shown to the right 6 DATE MOVED TOWAA __ _ HOW TO FILL OUT THE LABEL 1 Accumulation Date The accumulation date tracks compliance with regulations on disposal time limits Fill in the month day and year The regulations define accumulation date as 1 the date that a NEW container receives a drop of a CHEMICAL WASTE or 2 the date that a HAZARDOUS MATERIALS container is emptied check the Empty Container Decision Tree to determine if it needs to be managed as hazardous waste or 3 the date that YOU DECIDE original containers of stock chemicals are no longer needed in your laboratory This means the accumulation date is always today s date the date you make a determination or decision 2 Generator Info This section defines the person who produced waste
25. ls have instructions on the back for each numbered item Chapter 1 of The Hazardous Chemical Waste Management Reference Guide for Laboratories has more detailed instructions Q How do I determine the hazard category of mixes A Use your knowledge of the constituents and information found in the Chemical Safety Database The database lists hazard categories for specific chemicals and mixes If your mixture is not on the database use it to look up the constituents then use the Determining the Primary Hazard Category sheet to help you make a professional judgment call on the correct category If you are still unsure check toxic Q How would I access the Chemical Safety Database A Refer to the Stanford Safety Manual for instructions on how to access the Chemical Safety Database Q The Chemical Safety Database doesn t have hazard categories that are the same as the ones on the Stanford Hazardous Waste label What do you expect us to do A Use the Determining the Primary Hazard Category sheet to match the database classifications to label categories Q Ihave never heard of waste minimization What is it A The Minimization and Cost Containment Chart has all the legal requirements that you as a producer of hazardous chemical waste are responsible for implementing These requirements were enacted in 1991 Your department has probably implemented many of the requirements which you may not associate with the term minimization H
26. material The information you provide can be used to track the waste back to you from a disposal site if there are problems with it later You must provide the exact location bldg room where the waste was generated Do not use the location of your office unless the waste is generated in your office 3 Chemical Name In the first column list the chemical name of each constituent write the name in full do not use formulas or abbreviations A brand name may be used but you must have a MSDS for the material available in your lab List all known constituents including water if the waste is aqueous In the past you may have excluded non hazardous constituents however for full compliance they do need to be listed Hazardous Chemical Waste Management Reference Guide for Laboratories 12 In the second column labeled conc or ppm indicate by some means the relative concentrations of the listed constituents There are many ways to meet the requirements of this section of the label All methods must fully detail 100 of the constituents in the container Given below are three approaches which you may use to track the contents of your waste container while it is being filled Another standard method for describing the waste can be developed in your lab to meet your needs some discussion particularly when mixtures of waste are combined may be needed Approach 1 When the primary container holds only one waste mixture simply estimate t
27. nvert the lowest numbered hazard classification given in the database to the hazard category on the label The lowest numbered classification the primary hazard Ignore the numbers in the first row They do not refer to a chemical hazard HAZARD CATEGORY Take the concentration of a hazardous waste constituent into account when determining the hazard category of a mixture While some mixtures may contain many constituents most will have only one or two in large concentrations Use your best judgment to determine the hazard category Look up the highest concentration chemical constituents first To determine if the primary hazard listed in the database may have changed due to mixing follow the six guidelines below 1 If a constituent of a waste has a classification of corrosive and the pH of the waste mixture is gt 5 and lt 10 then the waste is not corrosive You can get pH paper at Chem Stores or use a pH meter 2 If a constituent is a flammable liquid and the flash point of the mixture is gt 140 degrees F then the mixture is not flammable Qualitatively evaluate the waste to determine this For example Ethanol water mixtures lt 10 are not flammable 3 If a constituent is a flammable solid yet so diluted that it will not sustain combustion then it is not flammable 4 If a constituent is aqueous and has a database classification of 4 then it is not water reactive 5 If a constituent is in contact with the air and has a dat
28. o Self Evaluations on IDENTIFICATION 1 c Researcher 2 a A material that has no intended use or reuse 3 a Non Hazardous Waste List 4 b Labels 5 d All of the above 6 d All of the above 7 d Toxic MINIMIZATION 1 d All of the above 2 c Costs 3 Purchasing 4 d All of the above 5 b Refillable gas cylinders to manufacturers CONTAINMENT 1 a Compatible 2 c Segregated per minimization cost containment guidelines and be compatible with each other 3 b Liquids 4 a Wastes and non wastes 5 b Used to locate on campus sources of containers with the volume and material construction you need 6 PRIMARY CONTAINERS b No rust or leaks c No leaks when inverted or tipped d Screw caps or tight lids are required No beakers coffee cans or flasks g For solids sealable plastic bags are OK i Open only when adding waste j No parafilms for seals SECONDARY CONTAINERS a For liquids tubs barrels and trays are OK e For solids boxes and containers with lids are OK h Required for all wastes except immobile solids e g gloves large chunks of material gas cylinders 7 True 8 True DISPOSAL 1 b Researcher s 2 c 8 months 3 a Non Hazardous Waste List 4 d EH amp S 5 a Consistent generation of a waste not highly variable in composition and b frequent at least every 2 months generation of the same waste 6 d 1 month 7 b Find out who may have produced the unknown determine its composition label it
29. ompliance approaches for chemical waste management in your lab can be tailored somewhat to the needs of individual departments or laboratories For example custom labels can be created on computers in your department as long as the words Hazardous Waste are on the label and items 1 through 5 on the Stanford Hazardous Waste Label see example are included This will save you time writing out common waste names and allow a central record keeping system for the hazardous chemical waste that has been handled in your department Another compliance technique might be to divide the hazardous chemical waste management procedures among individuals working on a common investigation or in a common lab Follow the regulations presented in this reference guide in the way that works best in your department Spill Response and Handling Emergencies If you have an unauthorized release of hazardous waste or hazardous materials into the environment soil sewer or surface water call EH amp S 5 7520 If a contained spill fire or explosion occurs refer to the Emergency Response Decision Chart in Appendix C and follow general emergency guidelines in the Stanford Safety Manual Chapter 6 Preventing and Handling Emergencies EH amp S SUPPORT SERVICES EH amp S provides the following services to laboratories in addition to training Consultations to help characterize waste Consultations on waste minimization and pollution prevention Consultations on wa
30. ot order one by calling EH amp S 5 7520 Hazardous Chemical Waste Management Reference Guide for Laboratories 19 SELF EVALUATION ON WASTE IDENTIFICATION see Appendix B for answers 1 The University relies on the to make the initial determination of whether a waste is hazardous and to label the waste accordingly Department of Environmental Health and Safety Principal Investigator Researcher Lab Safety Partner aoe The definition of a waste is a A material that has no intended use or reuse b A material that has a lapsed expiration date c Any material that has been processed d A material that has no current use What unique reference tool is available at Stanford for determining if a chemical waste is hazardous a Non Hazardous Waste List b Stanford Safety Manual c MSDS d PRISM Stanford has incurred its most numerous regulatory citations for absent or incorrectly filled out a Chemical names b Labels c Accumulation dates d Disposal forms On a Hazardous Waste label Accumulation Date is always today s date because it is The date a new container receives a drop of a chemical waste The date you decide processed materials have no further use The date you decide unused reagent chemicals are no longer needed All of the above BoP To determine which hazard category to check on the label use a Your knowledge and professional judgment b The Chemical Safety Database c
31. other researchers if they produced the material or know who did If the original researcher cannot be found narrow the scope of potential generators If your efforts at identifying the waste are unsuccessful the contents will have to be analyzed at a significant cost This process can sometimes take several weeks so please notify EH amp S by submitting a Standard Hazardous Chemical Waste Pickup Form as soon as an unknown waste is discovered Unknown wastes cannot be removed from your lab by EH amp S until they have been positively identified Hazardous Chemical Waste Management Reference Guide for Laboratories 31 STANDARD HAZARDOUS CHEMICAL WASTE PICKUP Date Requested by Phone Department Room Building Container Type Volume Weight m Hazard Category C Paper Carton Box ML C Corrosive P Plastic Bottle Liter F Flammable G Glass Bottle Gal O Oxidizer M Metal Can Gm W Air Water Reactive B Plastic Bag must be double bagged Kg Lb etc T Toxic CONTENTS CONTAINER TYPE VOLUME E HAZARD Use full chemical name s WEIGHT CATEGORY List all constituents of mixtures Do no use abbreviations or formulas FOR EHS Use Only Trans ID Assigned Picked Up Delivered Date Date Time Description Picked Up By initials Comments use reverse side if needed Form BHS 101 G EHS FYI Forms BHS101 doc 2 1 99 Standard Pickup Request Instructions Date Fill in the month day and yea
32. r Hazardous Chemical Waste Management Reference Guide for Laboratories 26 LOCATING HAZARDOUS WASTE CONTAINERS Containers may be obtained from campus stores or off campus The chart below lists containers that are commonly desired and where to get them on campus EH amp S provides a variety of container types and sizes on request at no charge Call them at 5 7520 At times the container you need will not be available on campus Appropriate containers can be found at discount or other off campus stores LOCATING COMMONLY USED HAZARDOUS WASTE CONTAINERS Volume Closure Type Material of Where to Obtain Construction 0 5L cap glass Chem amp Bio Stores IL cap glass Chem amp Bio Stores 2L cap glass Chem amp Bio Stores lid with ring plastic and bolt 30 gal lid with ring plastic EH amp S and bolt 55 gal lid with ring metal EH amp S and bolt Hazardous Chemical Waste Management Reference Guide for Laboratories 27 SELF EV ALUATION ON CONTAINMENT see Appendix B for answers l It is the researcher s responsibility to obtain primary and secondary containers that are in good condition and are with the wastes accumulated in them a Compatible b Lockable c Unbreakable d Expandable Wastes accumulated in the same container must meet two criteria They must be a Segregated per minimization cost containment guidelines and have a pH between 2 and 12 5 b Segregated per minimization cost containment
33. r of the date that you filled out and sent in the form Requested by While it is the individual researcher s responsibility to complete the hazardous waste label a disposal form may be completed by administrative staff This section needs to be completed by the person who will take responsibility for the disposal procedure Provide the name phone number and department of the person requesting the pickup Provide the building and room number of the location where the waste will be picked up This may differ from the building or room where the waste was produced as provided on the hazardous waste label Contents Transfer from the hazardous waste label Follow the directions on the form Container Type Use the legend on the form above This section helps EH amp S locate and pick up the correct containers Volume Weight Provide the amount in the volume or weight that is appropriate to the situation If you have more than one container of the same waste indicate this as shown in the example data on the previous page Hazard Category Transfer from the hazardous waste label Check the category that is the most hazardous also known as the primary hazard Blanket Hazardous Chemical Waste Pickup Form If you generate a consistent waste not highly variable in composition and need pickups every 2 months or less and the volume is at least 5 gallons consider submitting a Blanket Hazardous Chemical Waste Pickup Form This new form allows you to sele
34. raped out may be present EMPTY CONTAINER DECISION TREE Did the container previously hold a hazardous material Do you intend to reuse the container in the future to hold compatible waste Is the volume of the container 5 gallons or less Did the container hold an acutely or extremely hazardous material NOTE See the Stanford Safety appendix for alist of extremely acutely hazardous materials In your opinion would trashing the container pose a hazard Remove the cap or lid and place the container in the trash Hazardous Chemical Wast The container is not regulated Cross out the original label W ill rinsing the container remove hazard Rinse the container and manage the rinsate as a hazar do us waste Guid Management Referenc Em pty cont ainer means Liquids Not one drop of materia can be removed by tilting or inverting the container Solids and Semi Material cannot be feasibly removed by scraping or chipping Aerosols Contents and propellant are used to the maximum extent feasible under normal use Put a H azar do us W aste label on the container The Accumulation D ate the date the container was emptied The Chemical N ame the chemical composition of container s former contents Fill in the rest of the label Complete a Standard H azardous Chemical W aste Pickup form for Laboratories 11 HAZARDOUS WASTE STANFORD UNIVERSITY Instruct
35. rm because the university needs to keep track of processes and investigations that generated large volumes of waste for reporting purposes Provide the street name of the waste or a common abbreviation This will help facilitate the administration of the blanket pickup request process for both your department staff and EH amp S Transfer from the hazardous waste label Circle the appropriate one Transfer from the hazardous waste label Circle the primary hazard Circle the appropriate information or write it in Frequency must be at least every two months to qualify for using a blanket pickup Provide the estimated amount in the volume or weight that is appropriate to the situation Add a range if you anticipate the amount will vary slightly NOTE Container type is not requested This allows different types and sizes of containers to be used in a blanket period You don t always have to accumulate the waste in the same container type You do need to generate a consistent waste type and amount Follow the directions on the form The opportunity to list upper and lower concentrations of each chemical constituent allows you to dispose of a range of waste material on a blanket request basis The upper concentration column must total at least 100 Circle the metals in your waste PCBs and dioxins must also be circled Wastes that contain metals PCBs and dioxins are more costly to treat Circling the metals PCBs and dioxins in your wa
36. sense for the lab Wastes and non wastes may be stored together In order for Stanford to meet the regulatory time limits for waste accumulation laboratories may accumulate waste for only 9 months Once you submit a pickup request it may take up to a month to have the waste removed from your lab Thus you should submit a pickup request form prior to 8 months This allows EH amp S time to pickup your waste and time to transport the waste off site in the most cost effective and efficient manner Hazardous Chemical Waste Management Reference Guide for Laboratories 25 e Accumulation Criteria May be placed in flammables or corrosives cabinets No more than 55 gallons of waste may be accumulated at an LSAA or SAA at any one time No more than 1 quart of extremely or acutely hazardous waste may be stored at an LSAA or SAA Place in cabinet under bench shelf with earthquake protection flammables or corrosives cabinets hood floor space refrigerator Place as close to generator as possible In order for Stanford to meet the regulatory time limits for waste accumulation laboratories may accumulate waste for only 9 months Once you submit a pickup request it may take up to a month to have the waste removed from your lab Thus you should submit a pickup request form prior to 8 months This plan allows EH amp S about 1 month to pickup your waste and enough time to transport the waste off site in the most cost effective and efficient manne
37. ss the potential of A mixed waste of Ethanol and Xylene yields recycled recycling your solvents EH amp S treats some solvents Xylene on site at the waste management facility Hazardous Chemical Waste Management Reference Guide for Laboratories 22 SELF EVALUATION ON MINIMIZATION see Appendix B for answers 1 The University relies on the researcher to make determinations on how to minimize waste because he she a b c d Is best able to make such a determination Has knowledge of the composition of all materials Has knowledge of the chemical analysis and processes involved in the investigation All of the above 2 By minimizing the amount of waste and mixes created the researcher helps keep aoe of transportation treatment and disposal of wastes down Regulations Management Costs Effects 3 There are five lab activities involving chemicals into which you should integrate minimization techniques Four are listed below What is the missing activity aoe Checking chemical inventories Use of chemicals Accumulating hazardous wastes Solvent recycling Purchasing Setting up Cleaning up Documenting 4 When collecting waste in the laboratory a good way to reduce the expense of waste management is to a Put non halogenated and halogenated solvents in separate primary and secondary containers b Plan to recycle solvents c Put acids and mixtures of acids and metals in separate primary containers d
38. ste accelerates the administration of your blanket pickup request by allowing a quick scan to detect them Management Reference Guide for Laboratories 34 SELF EXAMINATION ON DISPOSAL see Appendix B for answers 1 3 It is the responsibility to see that storage limits on hazardous chemical waste are not exceeded Department of Environmental Health and Safety s Researcher s Principal investigator s Lab Safety Partner s aoe Labs may not accumulate hazardous chemical waste for more than 9 months However the maximum length of time researchers should keep their waste before arranging for pickup is because time is needed for EH amp S to retrieve it manage it cost effectively for disposal and prepare the administrative documents required by the regulators a 9 months b 3 months c 8 months d 11 months Non hazardous waste may be disposed of down the drain or in the garbage as described in the a Non Hazardous Waste List b Rad Chem Bio Hierarchy c Standard Hazardous Chemical Waste Pickup form d Minimization and Cost Containment chart Call for a consultation if you wish to treat your waste in the lab to remove or reduce its hazardous properties Your PI Your Lab Safety Partner The Palo Alto Treatment Facility EH amp S aoe Hazardous Chemical Waste Management Reference Guide for Laboratories 36 5 When you need to schedule a hazardous chemical waste pickup you will need to de
39. ste accumulation and disposal Consultation on if you can treat your chemical waste on the bench top so that it becomes a non hazardous waste Call 5 7520 for a process specific consultation EH amp S arranges for transportation and disposal of all hazardous wastes generated at Stanford and is responsible for the related administration process and documentation required by hazardous waste regulations Hazardous Chemical Waste Management Reference Guide for Laboratories COMMON QUESTIONS ABOUT CHEMICAL WASTE ADDRESSED BY THIS TRAINING PROGRAM What should I consider as a waste A material that has no intended use or reuse How do I determine the type of waste a mixture of chemical and biological waste is See the Radiological Chemical Biological Hierarchy How am I supposed to know what is considered hazardous The rules don t seem to make sense gt Q FO Q All chemical wastes are hazardous unless they appear on the Non Hazardous Waste List Check the list for your waste and dispose of it as described if your waste is listed If your waste is not listed handle it as hazardous If you think the waste should be characterized as non hazardous call EH amp S 5 7520 Q How do I handle used containers Do I look up the former contents on the Non Hazardous Waste List No Use the Empty Container Decision Tree to determine if your container is hazardous Q How can I be sure the label is filled out correctly A New labe
40. t of Toxic Substances Control implements and regulates the hazardous waste program in California Santa Clara County and the City of Palo Alto have in turn been authorized to implement parts of California s hazardous waste program Thus city Hazardous Chemical Waste Management Reference Guide for Laboratories 4 county state and federal regulators all have jurisdiction over hazardous waste management at Stanford CHEMICAL WASTE MANAGEMENT IN YOUR LAB There are two categories of accumulation areas for hazardous chemical waste Listed below are the distinguishing characteristics as well as the restrictions of each one This training module and guide is designed to cover only the Satellite Accumulation Area requirements given below If you operate an area which does not qualify as a SAA you must contact EH amp S for additional training Satellite Accumulation Area SAA Requirements e Cannot accumulate more than 55 gallons of any single waste e Cannot accumulate more than quart of any single extremely or acutely hazardous waste e Waste must be stored in the same room it was generated in or in a room that is under the control of the same Principle Investigator PI as the room in which it was generated e All rooms from which waste is accumulated must be on the same floor in nearby rooms e Laboratories operating as SAAs may accumulate hold waste for only 9 months Once you submit a pickup request it may take up to a month to
41. termine for accurate labeling EH amp S has created a resource that includes a listing of hazard classes for chemicals known as the Chemical Safety Database This database was created to assist you in identifying and segregating hazardous chemicals for accumulation It Allows searches of chemicals by name Stanford ID number Chemical Abstract Services CAS number or phonetic name Lists physical properties storage group and hazard class primary hazard first Is found on two campus electronic information services Prism and Folio Instructions on how to access these may be found in the Stanford Safety Manual The database is especially useful for determining the appropriate hazard category for hazardous waste labels Hazardous Chemical Waste Management Reference Guide for Laboratories 15 Chemical Safety Database Screen Example General Chemical Chem Safety The specific type _Indicatesthere are 21 types of Name Database Title of Phenol this Phenol described in the databa screen describes and this screen shows the fourth SSS Chemical Safety Search FULL display gt i Find NAME ph Number 2 ame Hl liquid e Storage Group D Compatible Organic Acids Flammables and Poisons UN Number UN1671 DOT Class UBC Class 1 111IA Physical State Liquid Etna Folie Boiling Point Flash Point Corrosives Moderate Poisons 15 Suspect carcinogen mutagen or reproductive hazard 16 Combustible 19 Acid And Not Or Se
42. that you have generated waste use the Radiological Chemical Biological Waste Hierarchy to identify the regulations that govern waste management Use the Non Hazardous Waste List and the Empty Container Decision Tree to identify what must be regarded as hazardous Handling Mixed Waste A mixed waste is one that contains radiological or biological waste in addition to the chemical waste Mixed wastes must be handled differently There is a hierarchy of mixed wastes that determines that radiological properties when present are the most important factors in determining waste handling chemical properties are the second most important factors for Hazardous Chemical Waste Management Reference Guide for Laboratories 9 determining waste handling and biological properties are third This reference guide is for the management of pure chemical waste only If a substance is a mixture of radiological and chemical materials it must be handled as a radiological waste call 5 7520 or 5 7529 for instructions If a substance is a mixture of chemical and biological material it must be managed through Stanford s Chemical Waste Program call 5 7520 or 5 7529 for instructions Rad ChentBlo Hlerarchy Radioactive amp Chenecal s Radioactive Waste Handling Procedures Chemical amp Biological Chemical Waste Handing Procedures Non Hazardous Waste List California state law mandates that any waste chemical or hazardous material is a hazardous waste
43. tration or physical or chemical characteristics may pose a substantial present or potential threat to human health or the environment when improperly treated stored disposed of transported or otherwise managed OBJECTIVES e Recognize your responsibility for the correct identification minimization containment and disposal of hazardous chemical waste Identification e Determine whether a material must be considered a hazardous chemical waste by using the Radioactive Chemical Biological Hierarchy the Non Hazardous Waste List and the Empty Container Decision Tree e Correctly complete a Hazardous Waste label e Determine hazard category Minimization e Learn ways of reducing chemical wastes and their costs in the lab by modifying procedures for inventory purchasing accumulation and solvent recycling Hazardous Chemical Waste Management Reference Guide for Laboratories Containment and Storage e Determine what type of primary and secondary container to choose for a given hazardous chemical waste e Set up an accumulation plan Disposal e Determine if a non hazardous chemical waste can be placed in the solid waste stream e g general trash or safely disposed of down the drain e Determine whether to schedule a blanket pickup or to use a standard pickup request form e Correctly complete a Standard Hazardous Chemical Waste Pickup Form BHS 101 e Correctly complete a Blanket Hazardous Chemical Waste Pickup Form BHS 10
44. tup Command Suggest Lock Pause End Match the primary hazard in the This type of Phenol database with the label category Phenol liquid has more Choose the lowest number information available on another screen Once ona screen The storage group is l type FIND provided and described for The physical state is described to do a new all chemicals listed in the for all chemicals listed in the search database database Hazardous Chemical Waste Management Reference Guide for Laboratories 16 Determining the Primary Hazard Category The Determining the Primary Hazard Category reference on the following page is helpful for identifying the primary hazard category of a waste Use this reference along with the Chemical Safety Database The Determining the Primary Hazard Category reference matches the 40 hazard classes in the database with the five hazard categories found on the hazardous waste label It also contains information for making hazard determinations for dilutions and mixes Hazardous Chemical Waste Management Reference Guide for Laboratories 17 DETERMINING THE PRIMARY HAZARD CATEGORY Convert Chemical Safety Database hazard classifications to categories on a Hazardous Waste label 1 Find the chemical constituent s in the Chemical Safety Database See page 4 20 of the Stanford Safety Manual to learn how to access the database Unless otherwise noted chemical concentrations are 100 2 Use the chart below to co
45. unless it meets a set of criteria EH amp S evaluates wastes to determine if they meet the criteria If a chemical waste is determined by EH amp S to be a non hazardous waste it is added to the Non Hazardous Waste List If you are using a chemical that is on the list you can dispose of it as described All chemicals not on this list must be regarded as hazardous and be managed and disposed of as hazardous chemical waste The Non Hazardous Waste List can be found on the EH amp S Web Pages The URL is http web stanford edu dept EHS prod enviro waste nohaz html The Non Hazardous Waste List will be updated as more chemicals and concentrations are tested EH amp S cannot afford to evaluate all chemical wastes that are generated by campus laboratories However if you generate 10 gallons or more per month of a waste that you suspect should not be treated as hazardous call EH amp S 5 7520 to request that an evaluation be conducted Hazardous Chemical Waste Management Reference Guide for Laboratories 10 Empty Container Decision Tree Chemical waste materials must be handled as hazardous unless they are on the Non Hazardous Waste List Used hazardous materials containers are an exception however They have their own resource for hazard determinations which is the Empty Container Decision Tree To properly use the Empty Container Decision Tree the container must be truly empty Not a drop of liquid nor any solid residue that could be sc
46. us Waste Containers Locating Commonly Used Hazardous Waste Containers Chart Summary Questions Disposal of Hazardous Chemical Waste cccccceeeeeeeeeeeeeees 31 Objectives Overview Non Hazardous Waste List Forms Standard Hazardous Chemical Waste Pickup form BHS 101 Blanket Hazardous Chemical Waste Pickup form BHS 100 Unknown Wastes Wastes that Cannot be Stored at EH amp S Summary Questions Non Hazardous Waste List Answers to Summary Questions Examples of Approaches to Filling Out the Chemical Name Section of the Hazardous Waste Label Blank Hazardous Waste Label and Pickup Forms Introduction MODULE OVERVIEW This reference guide was developed to reflect changes in the hazardous chemical waste management program that have occurred since the Stanford Safety Manual was last updated This guide accompanies a chemical waste management training program that has been prepared by the Department of Environmental Health and Safety In this reference guide emphasis has been placed on chemical waste procedures for the specialized operations of university research laboratories The purpose of the training program and guidance manual is to provide instruction to all laboratory waste producers in procedures that are required to meet city county state and federal chemical waste management regulations DEFINITIONS Hazardous waste is defined as a waste or a combination of wastes which because of its quantity concen
47. wastes generated in laboratories are presumed by the State of California to be hazardous waste Stanford may rebut this presumption by reviewing available information regarding the material or by testing EH amp S compares the results of the review testing to the definitions established by the State of California for toxicity ignitability corrosivity and reactivity The Non Hazardous Waste List describes disposal methods permitted for chemical wastes that do not need to be managed as hazardous This list of chemical wastes considered to be non hazardous can be accessed on the Web at URL gt gt gt http web stanford edu dept EHS prod enviro waste nohaz html If you believe that your waste is not hazardous but it is not on the list please contact EH amp S at 5 7520 for a hazardous waste determination Bench treatments such as neutralization or precipitation for some hazardous wastes may be allowed Call EH amp S 5 7520 if you think you have a bench treatable waste a regulatory consultation based on your individual case is required before you can proceed Hazardous Chemical Waste Management Reference Guide for Laboratories 30 FORMS To dispose of hazardous chemical wastes the proper forms must be filled out completely and accurately There are two types of pickups For a standard pickup use the Standard Hazardous Chemical Waste Pickup Form BHS 101 For a blanket pickup use the Blanket Hazardous Chemical Waste Pickup Form BHS 10
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