ASTM F2170-09
(Test Method)Standard Test Method for Determining Relative Humidity in Concrete Floor Slabs Using in situ Probes
Standard Test Method for Determining Relative Humidity in Concrete Floor Slabs Using <bdit> in situ</bdit> Probes
SIGNIFICANCE AND USE
Moisture permeating from concrete floor slabs affects the performance of flooring systems such as resilient and textile floor coverings and coatings. Manufacturers of such systems generally require moisture testing to be performed before installation on concrete. Internal relative humidity testing is one such method.
Excessive moisture permeating from floor slabs after installation can cause floor covering system failures such as debonding and deterioration of finish flooring and coatings and microbial growth.
Moisture test results indicate the moisture condition of the slab only at the time of the test.
SCOPE
1.1 This test method covers the quantitative determination of percent relative humidity in concrete slabs for field or laboratory tests.
1.2 The values given in parentheses are for information only.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
Specific warnings are given in Section 7, 10.3.2, and 10.4.4.
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Designation:F2170–09
Standard Test Method for
Determining Relative Humidity in Concrete Floor Slabs
1
Using in situ Probes
This standard is issued under the fixed designation F2170; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope 4. Summary of Test Method
1.1 This test method covers the quantitative determination 4.1 This test method comprises two procedures for forming
of percent relative humidity in concrete slabs for field or holes in concrete into which a relative humidity probe is
laboratory tests. placed. Procedure A for hardened concrete involves drilling a
1.2 The values given in parentheses are for information cylindrical hole in concrete with a rotary hammerdrill, then
only. placing a hollow sleeve to line the hole. Procedure B is an
1.3 This standard does not purport to address all of the alternative procedure for fresh concrete, which involves form-
safety concerns, if any, associated with its use. It is the ing a cylindrical hole in concrete by placing a hollow cylin-
responsibility of the user of this standard to establish appro- drical tube in the formwork, then placing and consolidating
priate safety and health practices and determine the applica- concrete around the tube. The liner or tube permits measure-
bility of regulatory limitations prior to use. ment of RH at a specific, well-defined depth in the concrete.
Specific warnings are given in Section 7, 10.3.2, and 10.4.4. 4.2 Methods of probe calibration and factors affecting
equilibration are described in Section 8.
2. Referenced Documents
2
5. Significance and Use
2.1 ASTM Standards:
C511 Specification for Mixing Rooms, Moist Cabinets, 5.1 Moisture permeating from concrete floor slabs affects
Moist Rooms, and Water Storage Tanks Used in the the performance of flooring systems such as resilient and
Testing of Hydraulic Cements and Concretes textile floor coverings and coatings. Manufacturers of such
E104 Practice for Maintaining Constant Relative Humidity systems generally require moisture testing to be performed
by Means of Aqueous Solutions before installation on concrete. Internal relative humidity
F710 Practice for Preparing Concrete Floors to Receive testing is one such method.
Resilient Flooring 5.2 Excessive moisture permeating from floor slabs after
installation can cause floor covering system failures such as
3. Terminology
debonding and deterioration of finish flooring and coatings and
3.1 Definitions:
microbial growth.
3.1.1 relative humidity, n—ratio of the amount of water 5.3 Moisture test results indicate the moisture condition of
vaporactuallyintheaircomparedtotheamountofwatervapor
the slab only at the time of the test.
required for saturation at that particular temperature and
6. Apparatus
pressure, expressed as a percentage.
3.1.2 service temperature and relative humidity, n—average 6.1 Humidity Probe and Digital Meter—Relative humidity
ambient air temperature and relative humidity that typically and temperature sensors in cylindrical probe, with external
will be found in a building’s occupied spaces during normal diameter less than approximately 0.75 in. (20 mm). Obtain
use. probes from a manufacturer with NIST traceable calibration
equal to or better than 62 % relative humidity at 50 % relative
humidity and 62 % relative humidity at 90 % relative
1
ThistestmethodisunderthejurisdictionofASTMCommitteeF06onResilient
humidity.
Floor Coverings and is the direct responsibility of Subcommittee F06.40 on
Practices.
NOTE 1—Calibration by end-users using saturated salt solutions in
Current edition approved July 15, 2009. Published September 2009. Originally
accordance with Practice E104 is not recommended due to the technical
approved in 2002. Last previous edition approved in 2002 as F2170-02. DOI:
difficulties of maintaining sufficiently accurate reference standards.
10.1520/F2170-09.
2
Checking with salt solutions is an acceptable method of assessing probe
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
performance.
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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F2170–09
6.2 Hole Liners,plasticornon-corrodingmetaltubes,inside 8. Calibration
diameternotmorethan0.04in.(1mm)greaterthantheprobe’s
8.1 Recalibrate probes at least annually or more frequently
external diameter, of sufficient length to seal the
...
This document is not anASTM standard and is intended only to provide the user of anASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation:F2170–02 Designation:F2170–09
Standard Test Method for
Determining Relative Humidity in Concrete Floor Slabs
1
Using in situ Probes
This standard is issued under the fixed designation F 2170; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope
1.1 This test method covers the quantitative determination of percent relative humidity in concrete slabs for field or laboratory
tests.
1.2 The values given in parentheses are for information only.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility
of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory
limitations prior to use.
Specific warnings are given in Section 7, 10.3.2, and 10.4.4.
2. Referenced Documents
2
2.1 ASTM Standards:
C511 Specification for Moist Cabinets, Moist Rooms, and Water Storage Tanks Specification for Mixing Rooms, Moist
Cabinets, Moist Rooms, and Water Storage Tanks Used in the Testing of Hydraulic Cements and Concretes
E 104 Practice for Maintaining Constant Relative Humidity by Means of Aqueous Solutions
F 710 Practice for Preparing Concrete Floors to Receive Resilient Flooring
3. Terminology
3.1 Definitions:
3.1.1 relativehumidity,n—ratiooftheamountofwatervaporactuallyintheaircomparedtotheamountofwatervaporrequired
for saturation at that particular temperature and pressure, expressed as a percentage.
3.1.2 service temperature and relative humidity, n—average ambient air temperature and relative humidity that typically will
be found in a building’s occupied spaces during normal use.
4. Summary of Test Method
4.1 This test method comprises two procedures for forming holes in concrete into which a relative humidity probe is placed.
ProcedureAfor hardened concrete involves drilling a cylindrical hole in concrete with a rotary hammerdrill, then placing a hollow
sleeve to line the hole. Procedure B is an alternative procedure for fresh concrete, which involves forming a cylindrical hole in
concrete by placing a hollow cylindrical tube in the formwork, then placing and consolidating concrete around the tube. The liner
or tube permits measurement of RH at a specific, well-defined depth in the concrete.
4.2 Methods of probe calibration and factors affecting equilibration are described in Section 8.
5. Significance and Use
5.1 Moisture permeating from concrete floor slabs affects the performance of flooring systems such as resilient and textile floor
coverings and coatings. Manufacturers of such systems generally require moisture testing to be performed before installation on
concrete. Internal relative humidity testing is one such method.
5.2 Excessivemoisturepermeatingfromfloorslabsafterinstallationcancausefloorcoveringsystemfailuressuchasdebonding
and deterioration of finish flooring and coatings and microbial growth.
5.3 Moisture test results indicate the moisture condition of the slab only at the time of the test.
1
This test method is under the jurisdiction of ASTM Committee F06 on Resilient Floor Coverings and is the direct responsibility of Subcommittee F06.40 on Practices.
Current edition approved July 10, 2002. Published September 2002.
Current edition approved July 15, 2009. Published September 2009. Originally approved in 2002. Last previous edition approved in 2002 as F 2170-02.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
, Vol 04.01.volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
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F2170–09
6. Apparatus
6.1 Humidity Probe and Digital Meter, with relative humidity and temperature sensors in cylindrical probe, with external
diameter less than approximately 0.75 in. (20 mm), and accuracy 62-3% from 0 to 100% relative humidity. Obtain probes from
amanufacturerwithaNIST-traceablecalibrationcertificatestatingtherangeofcalibrationandtheaccuracyoverthatrange.Probes
shall be calibrated at 95% relative humidity or higher, in addition to lower relative humidity levels. —Relative humidity and
t
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