SHM40 User's Guide - M211423EN-B
Contents
1. a 7 84 gim x 6 65 gikg h 40 18 kJ kg Delete Back Select Tagged points in the main menu to see the list of stored points and values Time and temperature value are always shown for each tagged point The shown humidity quantity is the same as has been selected in the measurement view If all quantities view has been selected RH is shown instead The data stored for each tagged point includes Time when the point was tagged Serial number of the probe that was used useful for identifying the point Measured value of each quantity Press the Delete button to delete the point that is currently shown To delete all points in memory hold down the Delete button NOTE HMAO can store up to 40 tagged points If a new tagged point is stored when the memory is full the oldest tagged point is silently deleted to make room for the new point 42 Graph Duration Graph duration In the Graph duration screen you can select the timescale of the Graph view The shortest selectable timescale is 1 5 minutes the longest 32 hours You can also select Autoscale which means that the timescale will automatically adjust to show all of the measurement data in memory up to the maximum of 32 h M211423EN B Chapter 4 VAISALA Using the HM40 Indicator Settings Settings Language English en Units Time amp Date Pressure 1 0132 bar Backlight Delay 30s Battery Alkaline2. Choose Back Calibration Calibration How to Calibrate Q Quantity RH RH 2 Point count 1 3 Point 4 x 5 Note vAISA fel LIA Change Help How to Measure How to Calibrate RH Rel humidity Td Dewpoint Tw Wet bulb a Abs humidity Device information Battery voltage 2 285 V PROBE Probe type HMP110 Serial number F1550001 Back Opens the Settings menu The menu options are described in section Settings Submenu on page 44 In the Calibration submenu you can perform an adjustment procedure that corrects the humidity and temperature measurement of the meter For more information and the adjustment procedure see section Calibration on page 50 Opens a menu with help topics on measurement calibration and the measured quantities The help menu also includes a device information screen where you can view technical information about your HM40 indicator and connected probe 43 USER S GUIDE Settings Submenu Language Language suomi fi espa ol es svenska sv Ip CCKMM ru AAG 0p portugu s pt Choose metric Pressure unit Change 44 In the Language screen you can change the display language of the meter The choices are English en German de French fr Finnish fi Spanish es Swedish sv Chinese zh Russian ru Japanese jp Portuguese pt The Units
3. Calibration a rH tbe et tede cal dus 50 Calibrating the HMP40S Probe Using HMK15 Humidity Calibrator i i oie c toe tr e eee ede ene dad 51 Repair Maintenance cccseeeeeceeeceeeeeeeeneeeeeeeeeseneeesneeeeeees 54 CHAPTER 6 TROUBLEESEHOOTING irn 55 Avoid Condensation and Rain sus 55 Problem Situations seseeeeeeeeenee nenne 56 Technical Support cccceeceeeeeseeeeeeeeeeeseeeseeaneeeeeeeeeeeeeeanes 57 Product Ret rns eie rte 57 CHAPTER 7 TECHNICAL DATA einen epit nter tinere Rete t cuu tris n En De ie DURER ERR NER 59 Specifications 2 ended decease 59 Spare Parts and Accessories seeeens 61 DIMENSIONS iN mm oet erre eR s 62 2 M211423EN B VAISALA APPENDIX A HUMIDITY REPORT FORM USER S GUIDE List of Figures Figure 1 Contents of the SHMAO Kit 12 Figure 2 Drying in One Direction sssem e 17 Figure 3 Drying in Two Directions ssseemm m 17 Figure 4 Measurement Error at 1 C Temperature Difference 19 Figure 5 Pressing the Tube into the Hole sseeesee 21 Figure 6 Preparing the Tube for Fresh Concrete 22 Figure 7 Plugged Tube in Fresh Concrete sssseese 23 Figure 8 Cracking the Concrete at the Bottom of the Tube 23 Figure 9 Locking the
4. so they will also be adjusted Select the number of calibration points at menu item 2 Points You can perform a 1 point or 2 point calibration For 2 point calibration you need two reference environments For example LiCl and NaCl salt chambers provide 11 RH and 75 RH references Place the probe in the first reference environment first calibration point Wait 20 40 minutes for the reading to stabilize Select menu item 3 Point 1 and press the Set button The HM40 now shows the currently measured value of the selected quantity Set the reference value using the arrow buttons and press the OK button The correction to the measurement at point 1 is now shown in the text for menu item 3 If you are only doing a 1 point calibration skip to step 8 Place the probe in the second reference environment second calibration point Wait 20 40 minutes for the reading to stabilize M211423EN B Chapter 5 VAISALA Maintenance Mark pt RH2 Set the reference value for the measured calibration point 74 72 RH A ud 75 50 RH v Calibration NUY tU upra 1 Quantity RH 4 RH 2 Point count 2 3 Point 1 10 86 11 30 4 Point 2 74 72976 50 5 Note vAISA 6 Apply Set Calibration text AB CDEFGHIJKL MNOPQRSTUVWX Z0123456789 m mtI1 ERuRIVC Tq VAISALAJHEL Select Cancel Type RH 2 points RH RH1 10 86211 30 RH2 74 72275 50 Difference
5. 4 M211423EN B Chapter 1 General Information CHAPTER 1 GENERAL INFORMATION This chapter provides general notes for the manual and the SHM40 kit About This Manual This manual provides information for operating and maintaining the Vaisala Structural Humidity Measurement Kit SHM40 The manual also instructs in performing structural humidity measurements using the borehole method Contents of This Manual This manual consists of the following chapters VAISALA Chapter 1 General Information provides general notes for the manual and the SHMAO kit Chapter 2 Product Overview introduces the features advantages and the product nomenclature Chapter 3 Humidity Measurement in Concrete describes the borehole method of concrete humidity measurement Chapter 4 Using the HM40 Indicator introduces the functions of the HMAO indicator and the HMP40S probe Chapter 5 Maintenance provides information that is needed in basic maintenance of the SHM40 kit Chapter 6 Troubleshooting describes common problems their probable causes and remedies and provides contact information for technical support Chapter 7 Technical Data provides the technical data of the SHM40 kit Appendix A Humidity Report Form contains an example report form that can be used to record humidity measurement results USER S GUIDE WARNING CAUTION Version Information Table 1 Manual Revisions Manual Code Description M211423EN
6. B April 2012 This manual Moved measurement procedures to chapter 3 Updated safety precautions calibration screenshots and accessories list Added an example humidity report sheet M211423EN A Previous version Related Manuals Table 2 Related Manuals Manual Code Manual Name M211087EN HM40 Quick Guide M210185EN HMK15 User s Guide Documentation Conventions Throughout the manual important safety considerations are highlighted as follows Warning alerts you to a serious hazard If you do not read and follow instructions very carefully at this point there is a risk of injury or even death Caution warns you of a potential hazard If you do not read and follow instructions carefully at this point the product could be damaged or important data could be lost NOTE Note highlights important information on using the product M211423EN B Chapter 1 General Information Safety The SHMAO kit delivered to you has been tested approved as shipped from the factory Note the following precautions WARNING When drilling holes in concrete wear respiratory protection to avoid breathing concrete dust If you are drilling through a floor coating note that the dust may also contain hazardous materials such as lead asbestos fibers or crystalline silica When cleaning the hole avoid blowing dust away from the hole use a vacuum cleaner instead WARNING Contact with fresh unhardened
7. Company Name and Address www vaisala com M2171742 3 EN
8. Humidity Measurements 2 A e Quick connection adapter for HMP40S probe Display Right function button Up arrow button Power button Left function button Down arrow button Menu button oH gon Hg Hg Hog AADNABWN Ke VAISALA 31 USER S GUIDE Batteries CAUTION CAUTION 32 1112 008 Figure 15 HMP40S Probe where 1 HMP110 probe 2 30cmcable 3 Integrated rubber plug 4 Cable connector to HM40 indicator with quick connection adapter The HM40 indicator is powered by two AA size batteries You can use the following battery types Alkaline IEC LR6 Lithium IEC FR6 NiMH IEC HR6 Do not mix batteries of different types Both batteries must be of the same type Observe the storage and operation instructions of the battery manufacturer Alkaline batteries are the standard choice in non rechargeable batteries They are a good match for the power requirements of the HM40 indicator M211423EN B Chapter 4 Using the HM40 Indicator Lithium batteries are a good choice if you need the longest battery life or best capacity in low temperatures Lithium batteries are not rechargeable Do not confuse them with rechargeable lithtum ion batteries which cannot be used in HM40 NiMH batteries are rechargeable Two NiMH batteries are included with the USB recharger that is available from Vaisala as an option For order codes see section Spare Parts and Accessories on
9. Humidity Measurement in Concrete Alternate Sealing Materials Plastic Tubes Inserting a plastic tube in the hole is always necessary to ensure that you are measuring the humidity of the concrete at the desired depth Vaisala recommends using the tubes in the plastic tube set 19266HM since they provide a seal around the bottom part of the tube with the three thin ridges around the tube Sealing the crack between the tube and the hole is important when a drilled hole is used If you use a different plastic tube provide an equivalent seal around tube Rubber Plugs If you need to use a substitute material for the rubber plugs 233976 you can use putty tape or other plugs of appropriate size to plug the plastic tube Do not use hygroscopic materials or thin tapes such as masking tape HMP40S probe includes an integrated rubber plug with the cable so you always have a rubber plug available when you leave the probe to stabilize in the plastic tube Protective Covers The protective covers 19268HM are not required for measurement accuracy but they are recommended for the following reasons They keep the probe cable and the quick connector clean during the long stabilization period They make the prepared borehole easy to find visually preventing accidental interference with the measurement and damage to the probe VAISALA 27 USER S GUIDE Performing the Measurement The humidity of the hole reaches equil
10. calibrator allows you to produce known humidity environments using saturated salt solutions When calibrating the HMP40S probe using HMK15 Vaisala recommends using the special cover set for HMK15 Vaisala order code 230914 The special cover allows the HMP40S probe to be inserted into the salt chamber without having to remove the filter NOTE Performing a good calibration takes some time and preparation Read the HMK15 User s Guide before performing your first calibration with the HMK15 VAISALA 51 USER S GUIDE 52 Tagged points Graph duration auto Settings ace Help Enter Exit Calibration How to Calibrate 1 Quantity RH RH 2 Point count 1 3 Point 1 5 Note vAISA fel DESSEL Change Calibration How to Calibrate 1 Quantity RH RH 3 Point 1 4 Point 2 5 Note vAISA fel LIED Change Set the reference value for the measured calibration point 10 86 RH A RH1 AO RH v 0K Cancel Calibration NUY tU Cuprat 1 Quantity RH RH 2 Point count 3 Point 1 10 86 11 30 4 Point 2 5 Note VAISA 6 Apply set Back Press the Menu button and select the Calibration submenu Select the quantity to be calibrated at menu item 1 Quantity You can calibrate Temperature T or Relative Humidity RH measurement All other humidity quantities are calculated from RH and T
11. felt base or cellular plastic base Rubber floor coverings Cork tiles with moisture barrier plastic film Textile floor coverings with rubber PVC or latex base Natural fiber textile floor coverings without base 90 Plastic tiles Plastic floor coverings without felt or cellular plastic base Linoleum Cork Man made fiber textile floor coverings without base structure 97 Epoxy mass Acrylic mass Polyester plastic mass SisaR YL 2000 Code of Building practice RT 14 10668 2000 ISBN 951 682 506 0 page 318 M211423EN B Chapter 3 Humidity Measurement in Concrete Importance of Temperature Differences CAUTION Temperature of the probe and the concrete must be equal before starting the measurement In humidity measurement and especially in calibration it is essential that temperature of the probe and measured environment is the same Even a small difference in temperature between the measured environment and the probe causes an error As the curve below shows if the temperature is 20 C and the relative humidity 100 RH a difference of 1 C between the measured object and the probe causes an error of 6 RH When the humidity is 90 RH the corresponding error is 5 4 RH A temperature difference of a few degrees can also cause water to condense on the sensor surface HUMICAP sensor starts to function normally as soon as the water has evaporated If the condensed water is contaminated the li
12. measurements Membrane filter for HMP40S probe DRW010525 Adapter for indicator and cable quick connector HM40SADAPTER Cable for HMP40S probe HMP40SCABLE Long cable 2 7 m for HMP40S probe HMP40SCABLE2 Plastic tubes 12 pcs 19266HM Rubber plugs 12 pcs 233976 Weather proof carrying case with SHMAO filling 233815 Light carrying case for HM40S 230245SP Protective covers with lid 3 pcs 19268HM Plastic flanges 12 pcs for wet concrete 26529HM Long rubber plugs 12 pcs for wet concrete 26530HM USB recharger for HM40 indicator batteries 229249SP Special cover set for HMK15 230914 61 USER S GUIDE Dimensions in mm I 1111 097 Figure 21 HM40S Dimensions 62 M211423EN B Appendix A Humidity Report Form APPENDIX A HUMIDITY REPORT FORM This appendix contains an example report form that can be used to record humidity measurement results in concrete VAISALA 63 HUMIDITY REPORT Name and Location of Measured Structure Floor or Section Notes for example slab thickness drying direction casting date Location Depth of Relative Temperature Air Air Relative Date and time building grid code borehole Humidity C F Temperature Humidity or number cm RH C F RH Measurement Instruments Used Instrument or Probe Serial Number Last Calibration Date Measurements Performed By
13. pressure information is used when calculating certain humidity quantities such as mixing ratio symbol x If the ambient pressure differs significantly from the default setting of 1 0132 bar due to high altitude for example set the correct pressure value so that the HM40 indicator can calculate the measurement correctly Always on Screen is always lit This option will shorten the battery life significantly Always off Screen is always unlit This option provides the best battery life Delay 30s Backlight will automatically turn on when the user presses any button The backlight will turn off after 30 seconds of inactivity Dimmed Screen is always lit with a dim backlight Use the Battery setting to tell the HM40 what kind of batteries are installed This will help to scale the battery indicator correctly The options are Alkaline Rechargeable M211423EN B Chapter 4 VAISALA Using the HM40 Indicator Navigation The Navigation setting affects the behavior of arrow buttons in the measurement view Normal Up arrow moves quantity selector left down arrow moves it right Inverted Reverses the direction Rounding The Rounding setting affects the number of decimal places that are used to show the measurements On Measured values are rounded to one decimal place Off Measured values are shown with two decimal places Factory Settings The Factory settings option restores
14. reset all measurement data by pressing the Reset button This will clear all graphs and tagged points NOTE If you keep pressing the right function button long press the HM40 will tag the point without freezing the screen Main Menu You can open the menu from the measurement view at any time by pressing the menu button If you are already in the menu pressing the menu button returns you to the measurement view If you are in a submenu the menu button returns you to the previous menu level Mainmenu Use the arrow buttons to move up and down in Tunes ponts e the menu and function buttons to operate the menu options Typical functions in the menus are Calibration re Help e View and Enter open the selected menu option or submenu EICEBEN EM Change and Set change the value of the selected option Back returns to the previous menu view Exit closes the menu and returns to the measurement view NOTE Some menu screens have more content than can be visible at one time This is indicated by a scroll bar that appears on the right side of the screen Use the arrow buttons to scroll up and down VAISALA 41 USER S GUIDE Tagged Points Main menu Tagged points Graph duration auto Settings Calibration Tagged points ime RH RH T C 2 35 58 392 228 2 40 22 380 230 View Back Point 3 3 3 1 2011 2 41 46 0 01 02 ago G1030024 T 23 0 C
15. time to reach equilibrium with the humidity in the concrete Each borehole must be completely prepared and sealed during stabilization ideally with the probe remaining inside the tube Follow the instructions below l Three days before the measurements drill at least two holes with diameter of 16 mm and appropriate depth See section Measurement Depth on page 16 Clean the hole thoroughly using a vacuum cleaner Press a plastic tube 19266HM into the hole If you need something to press it with use the lid of the protective cover See Figure 5 below 1111 095 Figure 5 Pressing the Tube into the Hole Now you have a clean borehole that reaches to the correct depth and a plastic tube in it For best results you can also seal the crack around the tube and concrete with a suitable material Continue from section Inserting the Probe and Sealing the Hole on page 24 21 USER S GUIDE 22 Preparations for Freshly Cast Concrete Preparing the measurement in freshly cast concrete has the advantage that no drilling of the concrete is needed and tubes are easy and fast to install You can do the preparations without any danger to floor heating elements or water tubing that may be embedded in the concrete After the concrete is cast and you have decided where to measure prepare each measurement point as follows l Place the flange 26529HM around the tube and make sure it clips on to one of the grooves on the
16. 64 20 RH Apply Select menu item 4 Point 2 and press the Set button The HM40 now shows the currently measured value of the selected quantity Set the reference value using the arrow buttons and press the OK button The correction to the measurement at point 2 is now shown in the text for the menu item 4 Select menu item 5 Note to edit the calibration info text that is stored in the probe Edit the text using the select button and arrow keys When done select the OK character in the bottom right corner to save the changed text To exit without saving press the Cancel button Select menu item 6 Apply to save the calibration in the probe Check the applied corrections in the confirmation screen and press the Apply button To exit without applying the correction press the Cancel button 53 USER S GUIDE Repair Maintenance There are no user serviceable parts inside the housing of the HM40 indicator or the HMP40S probe Depending on the malfunction repair by a Vaisala Service Center may be possible Replacement HM40 indicators HMP40S probes and measurement accessories are available from Vaisala See section Spare Parts and Accessories on page 61 54 M211423EN B Chapter 6 Troubleshooting CHAPTER 6 TROUBLESHOOTING This chapter describes common problems their probable causes and remedies and provides contact information for technical support Avoid Condensation and Rain If the hu
17. Cover in Place seeeeen 24 Figure 10 Sealing the Tube with a Rubber Plug essssss 25 Figure 11 Cable Folded in the Protective Cover 25 Figure 12 Recommended Setup During Stabilization 26 Figure 13 Performing the Measurement sssseee 28 Figure 14 HMAO Indicator for Structural Humidity Measurements 31 Figure 15 HMPA0OS Probe enan aa a a emm enne 32 Figure 16 Connecting the Probe sssssssssee eem 34 Figure 17 gt Sereen Layout aio en ecd tempe petas 37 Figure 18 Elements of the Graph View ssseee 39 Figure 19 Tagged Points in the Graph View seenee 40 Figure 20 Changing the Filter sseemm m 50 Figure 21 HMAOS Dimensions seem 62 List of Tables Table 1 Manual REVISIONS eccentric n 6 Table 2 Related Manuals acorde t ne ne e Re et ER e AA 6 Table 3 Wooden Floor Coverings seee en 18 Table 4 Other Materlals meea inito retenti eet ene eden e epo 18 Table 5 Quantities Output by HMAOS sssseeee 36 Table 6 Indicators on the HM40 Display semmA 38 Table 7 Some Problem Situations and Their Remedies 56 Table 8 FIMP40S Probe iiie e eee e re Rn 59 Table 9 FIMAO ridicator 2 iie ned ene ht 60 Table 10 Spare Parts and Accessories sssssssssssssssss 61
18. Inserting the Probe and Sealing the Hole on page 24 Inserting the Probe and Sealing the Hole l Press a protective cover 19268HM on the plastic tube and turn it so that it slides down freely Press the protective cover against the concrete surface so that the sealing compresses slightly Turn the cover 90 to lock it in place 1111 131 Figure 9 Locking the Cover in Place Insert the HMP40S probe into the tube and keep inserting the cable until the probe touches the bottom Seal the tube with the rubber plug on the cable See Figure 10 on page 25 M211423EN B Chapter 3 Humidity Measurement in Concrete 1111 132 Figure 10 Sealing the Tube with a Rubber Plug 3 Fold the cable inside the protective cover and close the lid Leave the probe to stabilize before starting the measurements 1111 133 Figure 11 Cable Folded in the Protective Cover VAISALA 25 USER S GUIDE 26 If you cannot leave the probe in the tube plug the tube using a rubber plug 233976 This means you will have to insert the probe when taking the measurement and wait for about 30 minutes for stabilization It is recommended that you leave the probe into the tube as this ensures the best possible reliability of the readings 1111 134 Figure 12 Recommended Setup During Stabilization where 1 Lid 2 Protective cover 3 Probe cable 4 Rubber plug 5 Probe 6 Plastic tube M211423EN B Chapter 3
19. UE in measured data If you select a short timescale only the most recent data will be visible Calibration Help Change Exit The graph view is not available in the all quantities view Select a single quantity to show All graphs do not fit the graph on the screen at the same time 1 23 17 Hold NOTE HMAO indicator has no permanent memory for graph data When the HMAO is turned off the graphs are cleared Hold and Tag 40 If you press the right function button Hold button in a measurement view two things happen The measurement view freezes until you press the Release button The latest measurement point is tagged marked and stored in temporary memory See section Tagged Points on page 42 Tagged points are shown in the graph view as small dots below the graphs Point tagged RHz28 15 XRH T 2160 C 21 15m00 10m00 5m 1111 099 Figure 19 Tagged Points in the Graph View where 1 Previously tagged point 2 New tagged point M211423EN B Chapter 4 Using the HM40 Indicator CAUTION RAPERE SL When the screen is held the top of the display Le de displays the current date and time This is useful a 5 0 when you want to record the current data take a photograph or write it down T C 2 5 2 If date and time have not been set the top of the screen will simply read HOLD When the view is held you can
20. VAISALA USER S GUIDE Vaisala Structural Humidity Measurement Kit SHM40 M211423EN B PUBLISHED BY Vaisala Oyj Phone int 358 9 8949 1 P O Box 26 Fax 358 9 8949 2227 FI 00421 Helsinki Finland Visit our Internet pages at www vaisala com Vaisala 2012 No part of this manual may be reproduced in any form or by any means electronic or mechanical including photocopying nor may its contents be communicated to a third party without prior written permission of the copyright holder The contents are subject to change without prior notice Please observe that this manual does not create any legally binding obligations for Vaisala towards the customer or end user All legally binding commitments and agreements are included exclusively in the applicable supply contract or Conditions of Sale Table of Contents CHAPTER 1 GENERAL INFORMATION nne ten pn tienne kenn ne kenn pn aka nnne Enn annuis 5 About This Manual enun cerent tenete 5 Contents of This Manual sss 5 Version Information sssssssssssseeeeneenes 6 Related Manuals asele n aaee naaraana ae ataia 6 Documentation Conventions see 6 E Ij 7 ESD PEOtectlOD cir ert eerte Eben 7 Recycling oA a A EI A A E a ASER 8 Regulatory Compliance eee 8 Patent Notice 2 eeepc pes 8 Trademarks ud
21. alization time The plastic tube and rubber plug in the SHM40 kit are used for this purpose Ideally the probe should be inside the plastic tube during this time NOTE For reliable results it is recommended to have several measurement points VAISALA 15 USER S GUIDE 16 Measurement Depth The borehole must reach deep enough into the concrete structure to provide a representative humidity condition The correct depth of the borehole is affected by the drying conditions of the concrete structure When drying occurs from one side only the measurement depth d is 40 of the depth of a slab See Figure 2 on page 17 Fora concrete slab that is exposed to air on both sides the minimum depth of measurement d is 20 of the depth of the slab See Figure 3 on page 17 The minimum measurement depth using standard SHM40 accessories is 30 mm maximum is 90 mm Humidity Profile The humidity profile of the slab depends on the drying conditions of the concrete whether the concrete dries in one or in two directions In concrete slabs that dry in two directions the humidity is highest in the middle If a floor coating is applied the humidity spreads evenly throughout the slab until it corresponds to readings measured at the depth of approximately 20 of the slab In concrete slabs that dry in one direction only the humidity is highest at the bottom If a floor coating is applied the humidity spreads evenl
22. all settings FNAC Seas Ne Cee to their default values Probe calibration is not to the default values Probe calibration will not be affected affected Do you want to continue Yes No 47 USER S GUIDE 48 This page intentionally left blank M211423EN B Chapter 5 Maintenance CHAPTER 5 MAINTENANCE This chapter provides information that is needed in basic maintenance of the SHMAO kit Periodic Maintenance Cleaning HMAO indicator can be cleaned by wiping it with a moist cloth If the filter on the HMP40S probe becomes contaminated it is very likely to affect the humidity measurement since residue on the filter will retain some moisture Dirty filters must be replaced Do not use solvents to clean the HM40 indicator or the HMP40S probe Do not spray anything directly on the HMP40S since that may deposit impurities on the sensor CAUTION Do not immerse the HM40 indicator or the HMP40S probe in liquid CAUTION Do not attempt to clean the sensor element that is located inside the filter Any touching or blowing with pressurized air may damage it If the measurement accuracy cannot be restored by calibration and adjustment it is time to replace the HMP40S probe VAISALA 49 USER S GUIDE Changing the Filter Twist the filter counter clockwise to open it 2 Turn the filter until it can be removed Do not touch the sensors when pulling it away 3 Install the new filter and tig
23. arts and Accessories on page 61 NOTE Vaisala recommends using multiple HMP40S probes so that they can be inserted in all measurement points and left to equalize concurrently VAISALA 13 USER S GUIDE This page intentionally left blank 14 M211423EN B Chapter 3 Humidity Measurement in Concrete CHAPTER 3 HUMIDITY MEASUREMENT IN CONCRETE This chapter describes the borehole method of concrete humidity measurement Humidity Measurements in a Borehole SHMAO kit is designed for measuring humidity in concrete using the borehole method In the borehole method a hole is drilled to a suitable depth in the concrete structure to be measured After the drilling the hole is cleaned and covered and air humidity in the hole is allowed to equalize with the humidity in the concrete The airspace humidity will reach humidity equilibrium with the concrete in about three days After this the humidity measurement is made For successful humidity measurement using the borehole method and the SHM40 kit the following points are vital when preparing the hole The hole must be 16 mm and reach to proper depth See section Measurement Depth on page 16 After drilling the hole must be cleaned from the drilling debris The hole must be allowed to cool down from the drilling and the humidity in the concrete must be allowed to equalize with the air in the hole The hole must be sealed during the equ
24. concrete may cause irritation or burns to the skin and eyes Wear adequate protection and observe safe workplace practices CAUTION Do not modify the unit Improper modification can damage the product or lead to malfunction ESD Protection Electrostatic Discharge ESD can cause immediate or latent damage to electronic circuits Vaisala products are adequately protected against ESD for their intended use It is possible to damage the product however by delivering electrostatic discharges when touching removing or inserting any objects inside the equipment housing To make sure you are not delivering high static voltages yourself avoid touching exposed contacts on the probe or the meter VAISALA 7 USER S GUIDE Recycling fs Recycle all applicable material Dispose of batteries and the unit according to statutory regulations Do not dispose of with regular household refuse Regulatory Compliances The Vaisala Structural Humidity Measurement Kit SHMAO is in conformity with the provisions of the following EU directive s EMC Directive Conformity is shown by compliance with the following standards EN 61326 1 Electrical equipment for measurement control and laboratory use EMC requirements for portable equipment EN 550022 Information technology equipment Radio disturbance characteristics Limits and methods of measurement C C Patent Notice SHMAO kit i
25. e ettet ERE RE MEHR NARRA 32 Battery Life ettet 33 VAISALA USER S GUIDE Egea LITS PEEN AREA Re eee 33 Connecting the Probe seeeeeeenenn nen 34 Farst Start p iere irme E 35 Initial Settings sern aTa pr ode te Re eee e Pata 35 Quantities Explained eeeeeeeeeeee ener enn 36 Screen Layout and Controls eene 37 Indicators a oe ei een tein ber tr tn aee tcd 38 Numere Vie W netis teener aiaa err ao este dtr ad 38 Statistics VIGW n chee nro ac aes uri ge 39 Graphi VIew emeret RE DRM D eetedae 39 Hold and Tag 2 enne netten 40 Main Metu reet TT na er RERO cR Pte ERIS EE 41 Tagged Points eun RUP eroi ed 42 Graph D ratlon eter eerte ete t hd 42 SEUNS nera aaa ene eti e d EN detentus 43 Calibration z mia de eme dee e I ens terti 43 Help e mte tec bent Rete end 43 Settings Submenu eene 44 Language 3 tee eret rete epa ne ERE Ro Det dad 44 IMIS ic cr rne 44 Time S Date x eren eet th roter xp ke e steed os zed 45 Ici p 46 iz E fei M To n np 46 Ecl 46 MEI m 47 ROUNGING cce te petet Berrie e pu e ee ec 47 Factory Settinigs co hee eR o o RR ARRA ce 47 CHAPTER 5 MAINTENANDGE cere rne cresce cor C EUR PURI ELA EE RD PU Erini 49 Periodic Maintenance eese 49 Cleaning m 49 Changing the Filter ss 50
26. fe span of the probe may shorten and the probe may require adjustment ARH RH m N Q A oU Nn loo 2 40 20 0 20 40 60 80 100 Temperature C 1111 102 Figure 4 Measurement Error at 1 C Temperature Difference Figure 4 above shows the measurement error at 100 RH at temperatures ranging from 40 to 100 C when the difference between the ambient and sensor temperature is 1 C VAISALA 19 USER S GUIDE Preparations for Measurement Before you can measure the humidity of concrete using the borehole method you must prepare the borehole and wait for humidity to stabilize The preparations can be started on a freshly cast concrete if desired CAUTION Before starting read section Measurement Depth on page 16 Appropriate depth of the borehole is critical for accuracy NOTE For best results insert the probe to the plastic tube immediately after you are finished preparing the borehole and leave it to stabilize for three days NOTE Make sure that the tube and the probe are not colder than the concrete when inserting them this might cause condensation on the probe and the readings can be incorrect 20 M211423EN B Chapter 3 VAISALA Humidity Measurement in Concrete Preparations for Solid Concrete Prepare the boreholes at least three 3 days before the measurements so that the humidity inside the plastic tube has
27. his chapter provides the technical data of the SHM40 kit Description Value Measurement range 0 100 RH Accuracy incl non linearity hysteresis and repeatability Temperature range 0 40 C 0 90 RH 1 7 RH 90 100 RH 2 5 RH Temperature range 40 0 C 40 80 C 0 90 RH 3 0 RH 90 100 RH 4 0 RH Factory calibration uncertainty at 20 C 1 5 RH Humidity sensor Stability Vaisala HUMICAP 180R 2 RH over 2 years Typical stabilization time in a borehole when the concrete and the probe are in the same temperature 30 min Temperature Measurement range 40 80 C Accuracy over temperature range 0 40 C 0 2 C 40 0 C 40 80 C 0 4 C Temperature sensor Pt1000 RTD 1 3 Class B IEC 751 General Operating temperature range for probe 40 C 80 C Probe diameter 12 mm Probe length 71mm Cable length standard cable 0 3m Cable length long cable 2 7m Probe weight with standard cable 31g Probe housing material Stainless steel Probe filter and sensor protection Membrane filter with chrome coated ABS plastic 59 USER S GUIDE 60 Property Description Value Cable material Wire PVC Jacket PU Cable connector TRRS male 3 5 mm Probe housing classification IP65 Application Specific Dimensions Borehole diameter needed 16 mm Measurement depth with standard Min 30 m
28. hten it 1112 006 Figure 20 Changing the Filter Calibration The humidity measurement accuracy of the HMP40S probe should be checked once a year You can do this yourself using a humidity reference for example the Vaisala Humidity Calibrator HMK15 or send the probe to a Vaisala Service Center for calibration See the back cover of this manual for contact information If the calibration shows that the measurement accuracy is no longer within specification the probe must be adjusted If accuracy cannot be restored with adjustment the probe must be replaced All probes that are ordered from Vaisala are delivered calibrated See section Spare Parts and Accessories on page 61 50 M211423EN B Chapter 5 Maintenance CAUTION If you think the HM40 is not measuring humidity or temperature correctly calibration and adjustment is not the first thing to do Try the following first Make sure nothing is interfering with the measurement heat sources temperature differences or condensation Check that there is no moisture on the probe If the sensor has become wet you must allow it to dry before you can measure Always wait for the measurement to stabilize NOTE For an introduction to calibration order or download the free calibration book from Vaisala at the following address www vaisala com calibrationbook Calibrating the HMP40S Probe Using HMK15 Humidity Calibrator The HMK15 Humidity
29. ibrium with the humidity of the concrete approximately in three days Before this you cannot obtain reliable measurements l moe Po 28 If the probe has not been left to stabilize inside the tube a Remove the rubber plug from the tube b Insert the HMP40S probe in the tube c Seal the tube with the rubber plug on the cable Connect the probe to the HM40 indicator Turn on the HM40 indicator Switch to RH quantity Switch to graph view and verify that the readings are stable If you inserted the probe in step 1 wait for at least 30 minutes before continuing to the next step Write down the measured RH value You can also press the Hold button tag the point Turn off the HM40 and disconnect the cable If you do not wish to leave the probe into the tube remove the probe and close the tube with the rubber plug 1112 005 Figure 13 Performing the Measurement M211423EN B Chapter 3 Humidity Measurement in Concrete Ending the Measurements When the concrete is dry enough and measurements are no longer necessary remove the probe and the protective cover Pull out the plastic tube VAISALA 29 USER S GUIDE This page intentionally left blank 30 M211423EN B Chapter 4 Using the HM40 Indicator CHAPTER 4 USING THE HM40 INDICATOR This chapter introduces the functions of the HM40 indicator and the HMPA0S probe HM40 Indicator 1111 136 Figure 14 HM40 Indicator for Structural
30. idity quantity and temperature In the all quantities view the font is smaller to fit all values on screen M211423EN B Chapter 4 VAISALA Using the HM40 Indicator Statistics View A Ti Td Twax hiz The Statistics view shows the current value of the 0 02 29 kh Denn selected quantity as well as the maximum 33 Qe pe average and minimum value since the Ml 277 measurement was started There is also a counter rre cM that shows how long the measurement has been 24 39 235 running Sexe 733 B RH Td Tu a x his The counter for measurement time is not shown e NS in the all quantities view T 2163 2173 2184 q RH 3042 3125 32 67 RH Td 357 397 455 C The icons are Tw 1223 1238 1256 C a 5829 5 993 6 242 gm x 4909 5 048 5 259 gkg T Maximum h 3439 3477 3524klkg Average E Minimum Measurement time Graph View The Graph view shows a continuously updating graph of the selected quantity and temperature The graph limits and spacing adjust dynamically to show the full range of measurements Vi Td Tw ax hi RH 30 72 XRH T 22 44 C 1111 096 Figure 18 Elements of the Graph View where 1 Current values 2 Vertical spacing of the grid 3 Graph maximum 4 Graph minimum 5 Time 39 USER S GUIDE Mainmen f The timescale of the graph can be changed in the Tagged points Main menu By default the graph will automatically change the timescale to fit the
31. indicator with the HMP40S probe All of the quantities are measured or calculated when the HM40 is on independent of what is currently displayed NOTE Relative humidity RH and temperature T are the most important quantities for structural humidity measurement Table 5 Quantities Output by HM40S Quantity Symbol Unit s Description Relative RH Ratio of the partial pressure of humidity water vapor in the air to the saturation vapor pressure of air at the current temperature Dewpoint Td C Temperature at which the water F vapor in the air will condense into water at the current pressure When the dewpoint is below 0 C the HM40 outputs frostpoint Tf instead of dewpoint Wet bulb Tw C The minimum temperature that temperature F can be reached by evaporative cooling in the current conditions Absolute a g m3 Quantity of water in a cubic meter humidity gr ft3 or cubic foot of air Mixing ratio x g kg Ratio of water vapor mass per gr Ib kilogram or pound of dry air Enthalpy h kJ kg Sum of the internal energy of a btu Ib thermodynamic system Temperature T C Temperature in Celsius or E Fahrenheit scale 36 M211423EN B Chapter 4 Using the HM40 Indicator Screen Layout and Controls VAISALA 1112 004 Figure 17 Screen Layout where co 109 tA 43 t2 b2 10 Alert indicator Currently selected quantity Battery indicator Measurement display a
32. m accessories Max 90 mm Table 9 HM40 Indicator Property Description Value Operation temperature range for indicator 10 60 C with LCD display Storage temperature range 30 70 C Dimensions HxWxD Indicator with adapter 184 x 72 x 44 mm Weight Indicator with adapter and batteries 240g SHMAO case with standard content 3 7 kg Indicator materials PC ABS blend Acrylic display lens Indicator adapter materials Nickel plated brass and plastic overmolding Housing classification IP54 Mechanical drop endurance 1 0 m without the probe Power up time 3s Batteries 2 X AA sized 1 5V LR6 Calculated variables Td Tw a x h Menu languages English German French Finnish Spanish Swedish Chinese simplified Russian Japanese Portuguese Display LCD 140 x 160 pixels Operation time Alkaline batteries Typical 100 hours without backlight Electromagnetic compatibility EMC European Union directive EN61326 1 for portable equipment M211423EN B Chapter 7 Technical Data Spare Parts and Accessories VAISALA Table 10 Spare Parts and Accessories Description Order Code HM40 indicator with adapter and cable probe for HM40S concrete moisture measurements HM40 indicator with adapter HMAOSINDI RH amp T probe with cable for concrete moisture HMP40S
33. midity sensor element on the probe becomes wet the probe cannot measure until the sensor is dry again Avoid rain and conditions where condensation can form on the sensor Do not use the transport protection cap if the probe is wet since it will prevent the probe from drying CAUTION Do not touch the sensor or blow on it to dry it out VAISALA 55 USER S GUIDE Problem Situations 56 Table 7 Some Problem Situations and Their Remedies Problem Possible Cause Remedy Readings on the HM40 screen are replaced by asterisks Probe disconnected Connect a HMP40S probe to the HM40 indicator Probe connection loose or dirty Disconnect the probe check and clean the connector Check that the quick connector on the HM40 sits tightly Reconnect the probe Very low battery voltage Check the battery indicator Replace batteries with fresh ones The screen is blinking on and off Very low battery voltage Replace batteries with fresh ones When performing the humidity measurement in a borehole the measurement is not stable even after waiting The measurement hole has not been adequately prepared The borehole may not have been cleaned or sealed during stabilization Check and prepare the hole again The humidity in the concrete has not reached equilibrium with the air in the borehole The borehole needs a longer stabilization time Re plug the hole and meas
34. nnector socket on top The cable of the HMP40S probe has the equivalent plug To connect the probe simply plug in the probe cable to the connector 1111 135 Figure 16 Connecting the Probe 34 M211423EN B Chapter 4 Using the HM40 Indicator First Startup 1 Remove the yellow transport protection cap from the HMP40S probe and connect the probe to the HM40 indicator Open the battery cover and insert two AA size batteries 3 Close the battery cover and turn on the HM40 by pressing the Power button If the HM40 does not turn on check the battery orientation Replace the batteries with fresh recharged ones if needed Initial Settings When you power on the HM40 indicator for the first time or after a factory reset of the settings you must first select the operation language You will then be asked if you want to change the following settings Units Date Time If you answer Yes to the question recommended the HM40 will show the settings screens before showing the measurement view Use the arrow and function buttons to select For more information see section Settings Submenu on page 44 NOTE HMAO indicator will retain the date and time even during battery changes The clock will have to be set again only if the indicator is without battery power for several hours VAISALA 35 USER S GUIDE Quantities Explained The table below describes the quantities measured by the HM40
35. nue 8 Warranty asientan ane etel net ee 9 CHAPTER 2 PRODUCT OVERVIEW teneret RR PREX ER ERE 11 Introduction to SHM40 Kit eeeeeeeseseesess 11 SHMAO Kit Contents 0 ccc cecceeseeeee cece eee eeeeseeeeeeeeeseeeeneneeeeeees 12 CHAPTER 3 HUMIDITY MEASUREMENT IN CONCRETE eene 15 Humidity Measurements in a Borehole 15 Measurement Depth ssssssssseesee 16 Humidity Profile eisai nee eet erede 16 Maximum Humidity Levels for Coating 18 Importance of Temperature Differences 19 Preparations for Measurement esee 20 Preparations for Solid Concrete sesssssss 21 Preparations for Freshly Cast Concrete 22 Inserting the Probe and Sealing the Hole 24 Alternate Sealing Materials sssssssssss 27 Plastic TUBES i erlitten ete ines 27 Rubber Plugs d geht abite aede herede 27 Protective COVGlIS in rette qe eletti 27 Performing the Measurement eene 28 Ending the Measurements eene 29 CHAPTER 4 USING THE HM40 INDICATOR eeeeneneeeennnneennn nennen nnns 31 HMAO Indicator ecceccceeeeeeeeeeeceeeeeeeneeeaneeseeeeeseeseeeneeeeeees 31 Batteries eiie ierit d pi
36. page 61 Battery Life Typical operation time that is achieved with alkaline batteries is 100 hours The operation time will be shorter if the display backlight is used and if the operation environment is cold NOTE HMAO does not automatically power off when it is not used To conserve batteries turn the meter off when you are not using it WARNING Charging The optional USB charger Vaisala order code 229249SP provides a convenient way to charge two NiMH batteries from any powered USB port for example from a laptop computer 1 Place the rechargeable batteries in the charger and plug it into a USB port The blue LED on top of the charger starts to blink 2 When the LED stops blinking and stays on the batteries are charged The charging time is several hours for two fully discharged NiMH batteries If you are not using a Vaisala supplied charger and rechargeable batteries read and follow the manufacturer s own charging instructions Do not attempt to charge non rechargeable alkaline or lithium batteries Doing so leads to a risk of battery leakage equipment damage and risk of explosion and or fire VAISALA 33 USER S GUIDE Connecting the Probe NOTE It is recommended that you turn off the HM40 indicator before connecting or disconnecting the probe The HM40 indicator that is delivered with the SHM40 kit or when ordering the HM40S has an adapter with a 3 5 mm TRRS co
37. rea Currently selected view Left function button change view Menu button enter menu Right function button Long press tag point short press tag point and hold screen Power button Long press power on off short press activate backlight Arrow buttons change quantity 37 USER S GUIDE NOTE Pressing the right function button holds the screen and tags the current measurement point See section Hold and Tag on page 40 38 Indicators Table 6 Indicators on the HM40 Display Symbol s BER Name Battery charge Description Fresh batteries will always show three bars When the indicator shows two bars the voltage of the batteries has started to drop When there is a single blinking bar left you should replace the batteries HM40 will turn off automatically when the battery voltage drops too low Alert This indicator is shown next to the battery charge indicator if there is a measurement problem The most likely cause is that the probe is currently disconnected or the battery is low 4 Td Tw ax hi Quantity Numeric View al 1 Td Tw ax hiz RH RH 28 1 23 s RH Td Tw a x hB Tc T 23 3 C RH 28 0 6RH Td 3 7 C Tw 12 9 C a 5 87 gim x 4 97 gikg h 36 12 kJ kg The selected quantity is highlighted by a light frame The symbol on far right stands for all quantities The Numeric view shows the currently values of the selected hum
38. s protected by the following patents and patent applications and their corresponding national rights Finnish patent 98861 French patent 6650303 German patent 69418174 Japanese patent 3585973 UK patent 0665303 U S patent 5607564 Trademarks HUMICAP is a registered trademark of Vaisala Oyj 8 M211423EN B Chapter 1 General Information Warranty VAISALA Visit our Internet pages for more information and our standard warranty terms and conditions www vaisala com warranty Please observe that any such warranty may not be valid in case of damage due to normal wear and tear exceptional operating conditions negligent handling or installation or unauthorized modifications Please see the applicable supply contract or Conditions of Sale for details of the warranty for each product USER S GUIDE This page intentionally left blank 10 M211423EN B Chapter 2 Product Overview CHAPTER 2 PRODUCT OVERVIEW This chapter introduces the features advantages and the product nomenclature Introduction to SHMAO Kit Vaisala Structural Humidity Measurement Kit SHMAO is a practical tool for humidity measurement of concrete and other structures The kit has been designed for use with the borehole method Main features HMAO indicator HMAO indicator with connection adapter for HMP40S probes Large graphical display with graphs for selected quantity and temperature Outputs a wide range of q
39. setting determines the measurement system that is used for the quantities Metric Non metric The Pressure unit is set separately hPa bar atm PSI M211423EN B Chapter 4 VAISALA Using the HM40 Indicator Time amp Date Set year A PINI 11 05 v Time setup Set hour 24h A 95 57 05 Y Minute OK In the Date setup screen you can set the current date Arrow buttons change the selected value Left function button selects the next value year month or day OK button stores the date and returns to the Settings menu After setting the date set the desired date format using the Formatting option in the Time amp Date menu In the Time setup screen you can set the current time Arrow buttons change the selected value Left function button selects the next value hours minutes or seconds OK button stores the time and returns to the Settings menu After setting the time select 24h or 12h clock using the Formatting option in the Time amp Date menu 45 USER S GUIDE 46 Pressure Pressure setup Set the current ambient pressure A MAU v OK Cancel Backlight Settings Language English en Units Time amp Date Pressure 1013 3 hPa Backlight Delay 30s Alkaline Battery Change Back Battery In the Pressure setup screen you can set the current ambient pressure The
40. surface of the tube The distance of the flange from the bottom of the tube determines how deep the tube will be inserted in the concrete dimension X in Figure 6 below Push the long rubber plug 26530HM inside the tube to prevent the fresh concrete from blocking it 1111 090 Figure 6 Preparing the Tube for Fresh Concrete Push the combined tube flange and plug to the fresh concrete so that the flange is level with the surface of the concrete Depending on the concrete type you may need to do some trowelling to ensure a flat surface around the tube See Figure 7 on page 23 M211423EN B Chapter 3 Humidity Measurement in Concrete 1111 091 Figure 7 Plugged Tube in Fresh Concrete 4 When the concrete has hardened remove the plug and the flange from the tube Leave the tube in place 5 Use a flat head screwdriver or other suitable tool to crack the concrete at the bottom of the tube This is necessary because during the curing of the concrete a solid surface forms in the bottom of the tube Cracking this surface helps the air in the tube to reach equilibrium with the humidity in the concrete See Figure 8 below 1111 092 Figure 8 Cracking the Concrete at the Bottom of the Tube VAISALA 23 USER S GUIDE 24 Clean the concrete dust at the bottom of the tube using a vacuum cleaner Now you have a clean borehole that reaches to the correct depth and a plastic tube in it Continue from section
41. uantities RH Td Tw a x h T See section Quantities Explained on page 36 Powered by standard AA size batteries 2 pcs Belt clip Interchangeable HMP40S humidity and temperature probe HMP110 probe and cable with integrated rubber plug Can be calibrated by a Vaisala Service Center or user calibrated using the HMK15 humidity calibrator for example Various accessories for ensuring accurate humidity measurement using the borehole method Durable weatherproof case Conforms to ASTM standard F2170 NOTE The HM40 indicator and HMP40S probe are also sold separately as the HM40S VAISALA 11 USER S GUIDE SHM40 Kit Contents 12 1112 007 Figure 1 Contents of the SHM40 Kit Standard contents ON Un iU h2 ll Pocket for documents and accessories HMAO indicator with quick connection adapter 1 pc HM40SINDI HMP40S humidity and temperature probe 1 pc HMP40S Plastic tubes 17 4 mm length 120 mm 12 pcs 19266HM Rubber plugs 13 mm length 21 mm 12 pes 233976 Protective covers with lid 64 mm length 101 mm 3 pes 19268HM Optional items not included with the standard kit 7 8 Long rubber plugs for fresh concrete 12 pes 26530HM Plastic flanges for fresh concrete 12 pes 26529HM M211423EN B Chapter 2 Product Overview You can order standard items and optional accessories from Vaisala For the full list of accessories see section Spare P
42. ure again later Measured humidity reading is much higher than expected HMPAOS probe in need of calibration and adjustment Adjust and calibrate the probe HMP40S probe has been stored in wet conditions Allow the probe and SHMAO case to dry out before resuming measurement Measured humidity reading is much lower than expected HMPAOS probe in need of calibration and adjustment Adjust and calibrate the probe Borehole is not deep enough Check the borehole depth see section Measurement Depth on page 16 M211423EN B Chapter 6 Troubleshooting Technical Support For technical questions contact the Vaisala technical support by e mail at helpdesk vaisala com Provide at least the following supporting information Name and model of the product in question Serial number of the product Name and location of the installation site Name and contact information of a technically competent person who can provide further information on the problem Product Returns If the product must be returned for service see www vaisala com returns For contact information of Vaisala Service Centers see www vaisala com servicecenters VAISALA 57 USER S GUIDE This page intentionally left blank 58 M211423EN B Chapter 7 CHAPTER 7 Technical Data TECHNICAL DATA Specifications VAISALA Table 8 HMP40S Probe Property Relative humidity T
43. y throughout the slab until it corresponds to readings measured at the depth of approximately 4096 of the slab M211423EN B Chapter 3 Humidity Measurement in Concrete hole for the 1 humidity BINE ec plastic tube coating profile E 222 slab BEFORE COATING AFTER COATING 1111 093 Figure 2 Drying in One Direction In concrete slabs drying in two directions the humidity is highest in the middle of the slab After coating the slab is driest on the uncoated side hole for the h idi hole for the plastic tube coating humidity plastic tube humidity N profile profile concrete slab L T BEFORE COATING AFTER COATING concrete slab 1111 094 Figure 3 Drying in Two Directions VAISALA 17 USER S GUIDE Maximum Humidity Levels for Coating 18 Sis RYL 2000 Code of Building Practice RT 14 10668 2000 ISBN 951 682 506 0 recommends the following maximum humidity levels at 20 C for coating of various materials Table 3 Wooden Floor Coverings Maximum RH 60 Wooden parquet boards without moisture barrier plastic film between wood and concrete 80 Inlaid wooden floor coverings Floating wooden floor coverings with moisture barrier plastic film between wood and concrete SisaRYL 2000 Code of Building practice RT 14 10668 2000 ISBN 951 682 506 0 page 332 Table 4 Other Materials Maximum RH Coating 85 Plastic floor coverings with fiber
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