1、Designation:F186911Standard Test Method forMeasuring Moisture Vapor Emission Rate of ConcreteSubfloor Using Anhydrous Calcium Chloride1This standard is issued under the fixed designation F1869;the number immediately following the designation indicates the year oforiginal adoption or,in the case of r
2、evision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This test method covers the quantitative determinationof the rate of moisture vapor emitted from below-
3、grade,on-grade,and above-grade(suspended)bare concrete floors.1.2 This test shall not be used to evaluate the rate ofmoisture vapor emitted by lightweight or gypsum concretefloors containing lightweight aggregate.1.3 This test shall not be used to evaluate moisture vaporemissions over coatings on co
4、ncrete or through reactivepenetrants or over patching or leveling compounds.1.4 This quantity of moisture shall be expressed as the rateof moisture vapor emission,measured in pounds of moistureover a 1000 ft2area during a 24-h period.1.5 The values stated in inch-pound units are to be regardedas sta
5、ndard.The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.1.6 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this stand
6、ard to establish appro-priate safety and health practices,and determine the applica-bility of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2E1745 Specification for Plastic Water Vapor Retarders Usedin Contact with Soil or Granular Fill under Concrete SlabsE1993 Specif
7、ication for Bituminous Water Vapor RetardersUsed in Contact with Soil or Granular Fill Under ConcreteSlabsF141 Terminology Relating to Resilient Floor Coverings2.2 Resilient Floor Covering Institute Standard:3Recommended Work Practices2.3 Military Standard:4MIL-PRF-131 Barrier Materials,Waterproof,G
8、reaseproof,Flexible,Heat-Sealable2.4 ICRI Guide:5ICRI Technical Guideline 310.1-1997 Selecting and Speci-fying Concrete Surface Preparation for Sealers,Coatings,and Polymer Overlays3.Terminology3.1 Definitions:See Terminology F141 for definitions of theterms,above-grade(suspended),below-grade,concre
9、te,on-grade,and resilient flooring.3.2 Definitions of Terms Specific to This Standard:3.2.1 moisture vapor emission rate(MVER)amount ofwater vapor in pounds emitted from a 1000 ft2area of concreteflooring during a 24-h period(multiply by 56.51 to convert tog/s m2).4.Significance and Use4.1 Use this
10、test method to obtain a quantitative valueindicating the rate of moisture vapor emission from the surfaceof a concrete floor and whether or not that floor is acceptableto receive resilient floor covering.The moisture vapor emissionrate only reflects the condition of the concrete floor at the timeof
11、the test.All concrete subfloors emit some amount ofmoisture in vapor form.Concrete moisture emission is anatural process driven by environmental conditions.All floorcoverings are susceptible to failure from excessive moisturevapor emissions.The moisture vapor emitted from a concreteslab is measured
12、in pounds.This measurement is the equivalentweight of water evaporating from 1000 ft2of concrete surfacein a 24h period.The calcium chloride moisture test has beenthe industry standard for making this determination and is a1This test method is under the jurisdiction ofASTM Committee F06 on Resilient
13、Floor Coverings and is the direct responsibility of Subcommittee F06.40 onPractices.Current edition approved July 1,2011.Published August 2011.Originallyapproved in 1998.Last previous edition approved in 2010 as F186910.DOI:10.1520/F1869-11.2For referenced ASTM standards,visit the ASTM website,www.a
14、stm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.3Available from Resilient Floor Covering Institute,966 Hungerford Drive,Suite12-B,Rockville,MD 20850.4Available from Standard
15、ization Documents Order Desk,Bldg.4 Section D,700Robbins Ave.,Philadelphia,PA 19111-5094,Attn:NPODS.5Available from International Concrete Repair Institute,International ConcreteRepair Institute 3 166 S.River Road,Suite 132,Des Plaines,IL 60018;,www.icri.orgCopyright ASTM International,100 Barr Harb
16、or Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 practical,well-established and accepted test of dynamic mois-ture.It will produce quantified results directly applicable toflooring manufacturers specifications.The results obtainedreflect the condition of the concrete floor surface at the time oftesting and may not indicate future conditions.5.Apparatus5.1 Test Unit Contents:5.1.1 Cylindrical Plastic Dish with Lid Containing Anhy-drous Calcium Chloride,heat sealed in a heat sea
