Thermometers - Indiana CTSI
Contents
1. 9 1 The current version of each of the following appendices is used to guide and or implement this SOP APPENDIX A SSF Thermometer Maintenance Log 1 Page APPENDIX B SSF Thermometer Usage Log 1 Page APPENDIX C Calibration of the NIST Thermometer Form 1 Page APPENDIX D1 Thermometer Calibration Verification Instructions 2 Pages APPENDIX D2 Thermometer Calibration Verification Worksheet 2 Pages SOP SF 3 7 04 SOP for Thermometers Appendix A Page of 1 SSF Thermometer Maintenance Log NIST Traceable Thermometer Q Yes Q No Additional sheets attached Q Yes Q No NIST SSF ID are Traceable Operating Range of Calibrated Sey Cerificate Type Digital DPs Temp sent to QA if Include ID for Probe if Manufacturer Model S N calibration Unit From Mfg Fee vs Column ent lied inf en Range from applicable applicable certificate supplied information CENS Y or N or NA received Thermometer QO Yes U Yes 0 No 0 No Q N A NA Prob is U Yes Q Yes 0 No 0 No Q N A NA Comments Service Record Service nt Current Date ce Mew Certiticate Comments Date in nae Date Out of Reason Unit is Out S Pree or Appendix D2 ENS Calibration ae Sice Returned if calibration sent to QA Due Date applicable certificate received yes SOP SF 3 7 SOP for Thermometers Form Version 04 Appendix B SSF Thermometer Location Usage Log SSF ID include ID for Pr2. Assign an SSF Identification to all probes SF NNP where NN is chronological and a number is not re used if the unit is taken out of service P represents Probe 6 2 1 2 Label each thermometer and probe with the assigned SSF ID certification expiration date and calibration range 6 2 1 3 Record thermometer and probe if applicable information as requested on Appendix A 6 2 1 4 Date in service is defined as the date the certificate is reviewed and considered satisfactory If no certificate is received contact the vendor for resolution 6 2 1 5 Current calibration due date and calibrated temperature range are located on the calibration certificate If no certificate is received contact the vendor for resolution 6 2 1 6 Select yes that service document and or calibration certificate is received 6 2 1 7 If calibration certificate is received send copies to QA SOP SF 3 7 04 SOP for Thermometers 6 2 2 Page 3 of 7 6 2 1 8 If calibration certificate was not received contact the vendor Do NOT use the thermometer until calibration certificate has been received Non NIST traceable thermometers probes Receive and document Appendix A SSF Thermometer Maintenance Log non NIST traceable thermometers and probes used in the SSF as follows Record one thermometer and probe if applicable per form 6 2 2 1 Assign an SSF Identification to all thermometers SF NN where NN is chronological and a number is not re used if the
3. The NIST glass bottle probe is used for room and water bath temperature monitoring 5 2 Thermometers which do not have an NIST traceable certificate of calibration and which must be compared to an NIST traceable thermometer to confirm calibration 5 2 1 Non NIST thermometers could be liquid in glass or digital 5 3 Standard grade AA batteries three 5 4 1 5 volt G 13 batteries one 6 PROCEDURE 6 1 Ordering Thermometers Probes 6 1 1 Contact PCI Calibration Company www pci llc com or another approved vendor to order NIST traceable thermometers probes A Calibration Certificate must be included with the NIST traceable unit upon receipt Review the calibration certificate to ensure that the S N listed on the certificate matches the S N of the unit received and that the calibration due date meets the expected requirements If the calibration certificate is not included or is unacceptable for any reason contact the vendor for resolution 6 1 2 Non NIST units are ordered from an approved vendor 6 2 Receipt of Thermometers Probes 6 2 1 NIST traceable thermometers Probes Receive and document Appendix A SSF Thermometer Maintenance Log NIST traceable thermometers and probes if applicable used in the SSF as follows Record one thermometer and probe if applicable per form 6 2 1 1 Assign an SSF Identification to all thermometers SF NN where NN is chronological and a number is not re used if the unit is taken out of service
4. Page of 7 Ses N DIA N A CT I STANDARD OPERATING PROCEDURE Clinical and Translational Sciences Jastitute Indiana CTSI Sp eimen Storage F acility TITLE STANDARD OPERATING PROCEDURE FOR THERMOMETERS CHAPTER 3 Equipment Issue Date O7 1 3 15 SOP SF 3 7 04 Effective Date D7 23 15 Ce 2715 DATE 3 R62 00s se memo YONG hated os marrows A GIne SUPERSEDES SOP N A AUTHORED BY REVIEWED BY QA APPROVAL a sein ee py DATE _07 3 53 Quality Compliance Specialist 1 REVISION 1 1 Significant changes incorporated in this version include 1 1 1 Added distinction between NIST traceable and non NIST traceable thermometers in section 3 1 1 1 2 Revised Materials section to include description of batteries needed 1 1 3 Total re organization of SOP content to improve process flow and ease of use 1 1 4 Revised Appendices A B and C for process improvement 1 1 5 Removed calibration directives from routine procedure and moved these instructions to Appendix D1 Revised Section 9 1 and added Appendix D1 and D2 accordingly 2 PURPOSE 2 1 This Standard Operating Procedure SOP defines the procedures used in the Indiana CTSI Specimen Storage Facility SSF to maintain and monitor all thermometers used in the SSF and ensure that temperature readings are accurate This procedure satisfies guidance set forth in ISBER 3 PRINCIPLE 3 1 Storage temperature is defined as a critical parameter for stori
5. Value Cont Temperature Range 30 C to 56 C 30 C to 85 C lt 85 C or gt 56 C Acceptable Variation 2 0 C 3 0 C 4 0 C Thermometer Temperature Initials Date F 4 Verification successful If not YES or NO describe actions in comment section Annual Visual Inspection for Initials Comments Column Glass Thermometers Date below If the thermometer is a Column Glass Fe ERETT olumn is acceptable Unit remains in 5 Thermometer perform the annual service 9 5 Column is cracked Unit discarded visual Inspection OColumn liquid was separated but was corrected Unit remains in service OColumn liquid is separated and could not be corrected Unit discarded Other Describe in comment section ONot Applicable Comments Reviewed By Date SOP SF 3 7 SOP for Thermometers Form Version 01
6. alue from the unit under test and record to the nearest 0 1 degree on Step 3 on Appendix D2 1 2 2 7 Compare NIST thermometer with readout from the unit under test 1 2 2 8 Determine if the variation is acceptable per the following chart Temperature Range 30 C to 56 C 30 C to 85 C lt 85 C or gt 56 C Acceptable Variation 2 0 C 3 0 C 4 0 C Document determination in Step 4 of Appendix D2 If the difference between the two readings for any of the three test points exceeds the above notify SSF management and proceed as follows 1 2 4 1 Take the thermometer out of service and replace with a unit that satisfies the above NIST comparison standard Update Appendix A 1 2 4 2 Initiate an Out of Specification OOS investigation per SF 1 10 1 2 4 3 Notify SSF Management to have the unit recalibrated repaired or replaced 1 2 4 4 Post repair of a non NIST traceable unit perform calibration steps as indicated on Appendix D1 and D2 prior to returning to service Record results and actions on Appendix A If the thermometer is a column glass thermometer inspect it to ensure that it is not cracked or that the liquid is not separated evident by air bubbles present Document inspection on Appendix D2 1 2 6 1 If the thermometer is cracked or the liquid is separated document on Appendix A discard unit and order replacement as applicable SOP SF 3 7 SOP for Thermomet
7. and Probe ID defines the specific info for the probe being tested with the thermometer being tested if applicable Place labels denoting the assigned SSF ID amp S N It is acceptable to also record this information by hand Check the box that describes the reason the verification is being conducted If the reason is not listed check other and describe 1 2 Select the environmental temperature test points set to be used in the verification Step 1 Appendix D2 1 2 1 1 2 2 Record the comparator NIST traceable Glass Electronic Thermometer and probe if applicable ID to be used in verification against thermometer under test in Step 2 Appendix D2 See step 1 2 1 2 for additional NIST device requirements If a comparator thermometer is not necessary and physical standards are used select N A in step 2 Appendix D2 for all columns and prepare baths for physical standards as follows 1 2 1 1 Physical standard baths preparation 1 2 1 1 1 LN2 Use a filled dewar or an LN2 freezer that is filled sufficiently to allow safe access to the LN2 1 2 1 1 2 Dry ice Place dry ice in a container or use the dry ice bin 1 2 1 1 3 Wet ice Fill a cup with ice and water 1 2 1 2 Note the following NIST traceable device requirements 1 2 1 2 1 Prior to using the NIST traceable unit thermometer probe for the calibration of an LN2 Freezer display ensure that the calibrated range of the thermometer probe unit ex
8. bration 3 If listed Calibration Company is unable to perform the desired calibration consult the SSF Director for directives Document all actions on this form 4 Retain this form in the SSF and complete Part II of this table upon receipt of until after calibration Part I Prior to shipment SSF Assigned ID and S N include probe ID if applicable Thermometer SSF ID amp S N Probe SSF ID Initials Date Desired Calibrated Temperature Range Requested Calibration Period U2 Years Q Other zist As Found As Left Measurements Requested UYes UNo Date Thermometer Shipped PO Date Estimate Received pO Part II Upon Receipt Thermometer SSF ID amp S N Probe SSF ID Initials Date Date Received o d O r lY INo Calibration Certificate Received tie Ne ec request certificate from calibration company Comments SOP SF 3 7 SOP for Thermometers Form Version 04 Appendix D1 ie Page of 2 Procedure for performing calibration of Thermometers See SOP sections 6 5 2 and 6 5 3 for description of when to use this procedure Record information on the Thermometer Calibration Verification Worksheet on Appendix D2 as follows 1 1 Preliminary Information Section 1 1 1 1 1 2 1 1 3 Thermometer ID defines the specific info for the thermometer being tested Place labels denoting the assigned SSF ID amp Manufacturer Serial Number S N It is acceptable to also record this information by h
9. d be a separate certificate each for the thermometer by itself as well as the thermometer and probe combination s 6 5 1 1 1 Access the calibration company s website per Appendix C 6 5 1 1 2 Contact the calibration company to request quote for calibration and ship unit to PCI or other approved calibration company 6 5 1 1 2 1 Be sure to specify the thermometer brand probe type the requested calibration temperature range request As found As left calibration data the length of calibration period desired and indicate if there are any probes to be calibrated with the thermometer 6 5 1 1 3 Package and ship NIST thermometer per Appendix C 6 5 1 1 4 The calibration company returns the NIST thermometer with a NIST Traceable Certificate of Calibration 6 5 1 1 4 1 If a calibration certificate is not received contact the calibration company and request the certificate 6 5 1 1 4 2 Upon receipt verify that the calibration certificate includes the information requested in step 6 5 1 1 2 1 If any requested information is missing contact the calibration company Record actions and results on Appendix C 6 5 1 2 Record results and actions in Appendix C After reviewing the calibration certificate if As Found values are out of specification notify SSF Director and initiate an OOS investigation per SF1 10 Alternatively thermometers probes may be discarded if past their calibration due date or when it
10. e vendor for repair or calibration or destroy the unit 6 7 2 3 Ifunit is returned to service record the following on Appendix A 6 7 2 3 1 Date returned to facility 6 7 2 3 2 Indicate if service and or calibration certificate was received 6 7 2 3 3 Record date in service SOP SF 3 7 04 SOP for Thermometers Page 7 of 7 6 7 2 3 4 Attach service and or calibration certificate to Appendix A if received 6 7 2 3 5 Send a copy of the new certificate or the calibration verification worksheet Appendix D2 to QA and document on Appendix A 6 7 2 4 If unit is not returned to service record N A on Appendix A and document an explanation in the comment section Retire the SSF Assigned ID for the thermometer and or probe and do not re use the number 7 REFERENCES 7 1 ISBER Best Practices current version 7 2 Cole Parmer Thermocouple Thermometer Type J K T User Manual 7 3 Control Company Traceable Sentry Thermometer User Manual 8 DOCUMENTATION 8 1 Documents are reviewed annually by SSF Management 8 2 NIST Traceability calibration certificates of conformance are maintained with the SSF Thermometer Maintenance Log Appendix A 8 3 Records of annual thermometer calibration verification are maintained per SF 1 6 Controlled Document Management SOP 8 4 OOS results are documented as defined in SF 1 10 SOP For OOS Response and Management 8 5 Deviations are managed per SF 1 9 Deviation Management SOP 9 APPENDICES
11. ent as deviation per SF 1 9 and complete the thermometer calibration verification per section 6 7 Ensure that the thermometer has an acceptable calibrated temperature range for the desired task and document on Appendix B 6 3 3 1 If thermometer does not have acceptable calibrated temperature range use a thermometer calibrated for the appropriate range Record the SSF Assigned ID for the thermometer and probe as applicable which was assigned as described in sections 6 2 1 and 6 2 2 Record the date on which the thermometer was used Alternatively record the date on which the unit was initially placed for the purpose of providing continuous monitoring Record initials of technician using thermometer or placing the unit in the location for the purpose of providing continuous monitoring Record the location where the thermometer was used In the Freezer ID w SN column record or place labels denoting the freezer ID and serial number of the applicable freezer If thermometer is for monitoring SOP SF 3 7 04 SOP for Thermometers Page 4 of 7 room temperature or any other continuous monitoring in a permanent location record NA in this column 6 3 9 Select the reason for using the thermometer If the reason is Other describe in the comment section For example if the thermometer is used for room temperature monitoring record the room ID where the thermometer will be used in the location column and note in the comment sec
12. ers Form Version 01 Appendix D2 Page 1 of 2 Thermometer Calibration Verification Worksheet Preliminary Information Unit and probe under test Reason Thermometer ID SSF amp S N m Expired Calibration Due Date only perform if thermometer is needed immediately and there is no time to retrieve an updated certificate Probe ID SSF O Non NIST Traceable Annual Calibration Verification 0 Other Step Description Observation Measurement P N Environmental Temperature Tests 1 Comparator Device Test 0 Refrigerator A physical substance defined by SSF standards is a O Room Temp substance with a temperature that remains constant and T 37 C warm water ba th 1 therefore does not required a comparator device The physical substances that are defined as constant are LN2 2 Physical Substance Test Dry Ice and Wet Ice All other temperature points require 196 C LN2 the use of a comparator device j 1 78 5 Dry Ice CL 0 C Wet Ice 3 Other Step Comparator Thermometer and probe if applicable ID If a per DA Connie ane any cicalicmtrstince teh selec Ny Calibration Expiration Date Initials Date All thermometer values recorded to nearest 0 1 degree Check N A in each section that will not be used based off of the selection in step 1 Comparator Device Test Physical Substance Test OO N A OQ N A Record temperature environment Exampl
13. es Temperature Environment 1 Temperature Environment 1 of environment would be refrigerator room temp warm water bath LN2 Dry Ice and Goio CAOT Wet Ice Value Equilibration time is minimum 20 min for the thermometers After placing thermometer and comparator device into bath place signage on or near the bath indicating that calibration is in process Place sign on bath even if there is no comparator device used Pass circle one Yes or No Pass circle one Yes or No Tech Date Tech Date QO N A QN A Temperature Environment 2 Temperature Environment 2 If recalibration investigation has been initiated per SF 3 1 it is acceptable to test the one temperature point in question instead 4 Comparator Comparator of three points Check N A on the other Value Value temperature environment boxes not used Use the table below to determine if the temperature variation between the comparator Pass circle one Yes or No thermometer or physical substance and the NIST thermometer under test is acceptable Tech Date Tech Date SOP SF 3 7 SOP for Thermometers Form Version 01 Appendix D2 Page 2 of 2 Thermometer Calibration Verification Worksheet Cont Unit Under Test Thermometer ID Probe ID Step Check N A in each section that will not be P D T Ph l T used based off of the selection in step 1 a O Ee aA Q N A O N A Comparator 3
14. is determined appropriate to do so 6 5 1 2 1 If thermometers and or probes are discarded retire the assigned SSF ID for the thermometers and or probes and do not re use numbers Document rationale for taking out of service on Appendix A 6 5 2 Non NIST traceable thermometers are not calibrated but the calibration is verified at time of receipt using the Thermometer Calibration Verification AppendixD1 D2 Re calibration for Non NIST traceable thermometers is due one year from the date of the last successful calibration 6 5 2 1 Additionally Column Glass Thermometers are visually inspected annually The annual re calibration is due one year from the date the SOP SF 3 7 04 SOP for Thermometers Page 6 of 7 Thermometer Calibration Verification and inspection was completed Record results and actions taken on Appendix A and Appendix B 6 5 3 Non routine Calibration of NIST traceable thermometers and probes performed if the calibration period for an NIST thermometer probe has expired and use of the unit is critical or for any other approved reason 6 5 4 Perform calibration as indicated in Appendix D1 Document unit as being Out of Service on Appendix A and document results of calibration on Appendix D2 6 5 5 As soon as possible submit unit for NIST calibration procedure as described in section 6 5 1 6 6 Cleaning 6 6 1 Only clean with a damp cloth Do not clean with abrasives or solvents Use mild detergents never immerse
15. ng biorepository specimens It is the responsibility of the SSF to ensure that the temperature is accurately measured NIST traceable devices are devices that have been calibrated by the manufacturer or calibration company with calibration certified to be NIST traceable and documented as such on a certificate of calibration NIST traceable devices do not require annual calibration re certification by SSF personnel Non NIST traceable devices do not come with certificates of calibration and the calibration of these devices must be verified by SSF personnel annually against a NIST traceable device The SSF strives to utilize only NIST traceable devices with up to date certificates of calibration unless it is otherwise not possible to do so 4 SCOPE SOP SF 3 7 04 SOP for Thermometers Page 2 of 7 4 1 This SOP applies to personnel operating and maintaining the thermometers used in the SSF to monitor critical storage environments This SOP describes the process for assuring that all thermometers are traceable to NIST standards and incorporates an NIST Traceable Thermometer as the temperature device to confirm accuracy of the SSF thermometers that are not otherwise NIST traceable 5 MATERIALS 5 1 Thermometers and thermocouples with detachable probes identified with a manufacturer provided Serial Number and a corresponding NIST Traceable Certificate of Calibration NIST Traceable 5 1 1 A Type T probe is used with the 196 C freezers and warmer
16. obe if applicable Year Page of 1 Page of __ Is Calibration Due Date After Today s Date Y Yes N No Calibrated Temp Range Acceptable Y Yes N No Date Used Used Location Freezer ID w SN Reason Comment Y N USSF MRU Quarterly OSSF LN2 Annual OOther Describe OSSF MRU Quarterly OSSF LN2 Annual OOther Describe OSSF MRU Quarterly OSSF LN2 Annual OOther Describe OSSF MRU Quarterly OSSF LN2 Annual OOther Describe OSSF MRU Quarterly OISSF LN2 Annual OOther Describe USSF MRU Quarterly OSSF LN2 Annual Other Describe USSF MRU Quarterly OISSF LN2 Annual Other Describe Y N Y N USSF MRU Quarterly OSSF LN2 Annual Other Describe Reviewed By SOP SF 3 7 SOP for Thermometers Form Version 03 Appendix C Page 1 of 1 NIST Traceable Unit Calibration Form Q Calibration Company Other Approved Calibration Company PCI 8100 Brownleigh Dr Suite 100 A Raleigh NC 27617 1 877 724 2257 www pci llc com 1 Provide the following information to the calibration company prior to shipping the device a Thermometer brand b Requested calibrated temperature range c Length of calibration 2 years or other approved time frame d Probes to be calibrated with thermometer 2 Complete the items below as applicable for unit cali
17. or use excessive fluid 6 7 Maintenance 6 7 1 Routine Maintenance as indicated by low battery indicators on units or as needed change batteries as follows 6 7 1 1 Cole Parmer Oakton Thermocouple Thermometer Type T 6 7 1 1 1 Ensure the thermometer is off and probe is removed 6 7 1 1 2 Loosen screw to remove battery cover from the back of case 6 7 1 1 3 Remove the three AA batteries 6 7 1 1 4 Insert new batteries 6 7 1 1 5 Screw cover on to back of thermometer 6 7 1 2 Control Company Traceable Sentry Thermometer 6 7 1 3 Unscrew the round battery cover on the back of thermometer 6 7 1 4 Remove battery 6 7 1 5 Replace with a new 1 5 volt G 13 size battery 6 7 1 6 Replace the battery cover 6 7 2 Non routine Maintenance For all thermometers If unit is not operating properly 6 7 2 1 Take out of Service Record date and reason for removing unit from service on Appendix A Also complete information on Appendix C if unit is NIST traceable If unit being sent for repair is NIST traceable request that the unit be calibrated Complete an Out of Specification per SF 1 10 6 7 2 1 1 If unit is non NIST traceable actions must be recorded on Appendix A Actions are not to be recorded on Appendix C since re calibration will not be requested Upon receipt of the non NIST unit returning to the SSF facility calibration verification must be completed to ensure unit is still functioning properly 6 7 2 2 Refer to outsid
18. task is complete remove probe from temperature environment 6 4 1 7 Turn off thermometer by pressing and holding the on off light button 6 4 2 Control Company NIST Traceable Sentry Thermometer Glass Bottle Probe 6 4 2 1 Prior to initial use remove the insulating tape from the battery compartment 6 4 2 2 If use of detachable probe is necessary plug the probe into the jack on the side of the unit 6 4 2 3 Press the RESET button once to update the probe temperature displayed on screen 6 4 2 4 Screen will display current probe temperature minimum and maximum temperatures 6 4 2 5 If thermometer is to be used for room temperature the probe is not necessary 6 4 2 6 Press the RESET button on the thermometer to display an updated ambient temperature reading 6 4 2 7 The screen will show the current ambient temperature minimum and maximum temperatures SOP SF 3 7 04 SOP for Thermometers Page 5 of 7 6 5 Calibration Inspection 6 5 1 Routine Calibration of NIST traceable thermometers and probes 6 5 1 1 Have digital NIST traceable thermometers calibrated bi annually on or before the expiration date listed on the current certificate Document this event on Appendix A per Section 6 2 1 Completion of the Out of Specification investigation is not required NOTE Any probes to be used with a specific thermometer MUST be sent in to the calibration company with the thermometer and be calibrated together There shoul
19. tends to at least 196 C 1 2 1 2 2 Prior to using the NIST traceable unit glass thermometer or electronic device as a comparator device at temperatures between 80 C and 50 C ensure that the unit is calibrated at the prescribed range Determine applicable range for thermometer under test Choose three different environmental temperature test points differing by 10 C from each other within that range For example the calibration of a thermometer with a range of 5 to 50 C may be checked by using temperatures such as 4 C refrigerator 25 C room temperature and 50 C warm water bath For each of the three points proceed with the following 1 2 2 1 Place in the appropriate environmental temperature For example the thermometer may be placed in a freezer refrigerator unit LN2 unit water bath or left out at ambient temperature 1 2 2 2 Place signage on the unit where test is being conducted as applicable Thermometer Calibration Verification in Process Do Not Open 1 2 2 3 Place the probe from the NIST traceable thermometer or the thermometer itself as applicable next to the thermometer being tested 1 2 2 4 Wait until temperature is stabilized minimum 20 minutes 1 2 2 5 Read the value from the NIST thermometer and record to the nearest 0 1 degree in Step 3 on Appendix D2 SOP SF 3 7 SOP for Thermometers Form Version 01 Appendix D1 1 2 3 1 2 4 1 2 5 1 2 6 Page 2 of 2 1 2 2 6 Read the v
20. tion that the reason is room temperature monitoring 6 3 10 Each page is reviewed by SSF management after completion and retained in the SSF Management office 6 4 Operation Note The operation of two specific types of thermometers thermocouples is described below The SSF is not limited to these two types of thermometers If additional units are deemed acceptable for use the SSF may utilize these units while referencing the respective user manuals supplied with the devices until such time as a description of the operation can be added to this SOP at the time of the next SOP revision 6 4 1 Cole Parmer Oakton Thermocouple NIST Traceable Thermometer with Type T Probe 6 4 1 1 Thermocouples and probes are very fragile If the delicate wires in the probes become loose frayed or broken they generally cannot be repaired and must be replaced Handle with care 6 4 1 2 Ensure that the probe calibrated with the thermometer is plugged into the thermometer before use 6 4 1 3 It is optional to deactivate the auto off function by pressing and holding the min max and on off light button at the same time A OFF nO will appear on the screen indicating that the auto off function is disabled At this point the thermometer should be on 6 4 1 4 Be sure the temperature scale is set to C If not press the button labeled C F to change it to C 6 4 1 5 Place probe in desired temperature environment 6 4 1 6 Once
21. unit is taken out of service Assign an SSF Identification to all probes SF NNP where NN is chronological and a number is not re used if the unit is taken out of service P represents Probe 6 2 2 2 Record thermometer information as requested on Appendix A 6 2 2 3 Date in service is defined as the completion date of a successful calibration verification refer to section 6 5 for instructions 6 2 2 4 Current calibration due date is one year from the completion date of the calibration verification The calibrated temperature range is determined by the temperatures used for the calibration verification 6 2 2 5 Select N A that service document and or calibration certificate was not received 6 3 Thermometer Usage Log 6 3 1 6 3 7 6 3 8 Document usage of all SSF Thermometers probes on the SSF Thermometer Usage Log Appendix B by following the steps listed below Clarification If a thermometer is to be used for room temperature monitoring or any continuous monitoring in a permanent location an entry must still be made on Appendix B Ensure that the thermometer probe does not have an expired calibration due date and document on Appendix B 6 3 2 1 Units with expired calibration dates are removed from service immediately if a replacement unit is available Document date out of service on Appendix A 6 3 2 2 When a replacement unit is not available keep expired unit in service until a replacement is obtained Docum
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