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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.
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 stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
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 (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
C511 Specification for Mixing Rooms, Moist Cabinets, Moist Rooms, and Water Storage Tanks Used in the Testing of Hydraulic Cements and Concretes
E104 Practice for Maintaining Constant Relative Humidity by Means of Aqueous Solutions
F710 Practice for Preparing Concrete Floors to Receive Resilient Flooring
ICS Number Code 91.080.40 (Concrete structures)
UNSPSC Code 30121704(Concrete slab)