Three test samples measuring 2 in x 2in (50 mm x 50 mm) shall be conditioned at 73☓ ☏(23☒C) and50%±5% relative humidity for a period of at least 24 h.The three samples shall each be separately weighedto the nearest 0.001 g.Test samples will then be exposed to a solution of tap water and commercialdetergent. Following the exposure, samples shall bepat-dried with a paper towel to remove excess water,and individually reweighed. Three test samples measuring 2 in x 2 in (50 mm x 50 mm) shall be conditioned at 73☓ ☏(23☒☌) and50%±5% relative humidity for a period of at least 24 h.The three samples shall each be separately weighedto the nearest 0.001 g.Test samples will then be exposed to a solution of tap water and household detergent.The test solution shall have a pH between 8 and 9, a detergent concentration of 0.3% ± 0.05%,and atemperature maintained at 100☒☏(38☑ ☌).Exposure shall be for a period of 6 h.The solution shall beof sufficient volume to completely submerge all of the samples. Supplemental flooring shall be resistant to the absorption or adsorption of water or oil. NSF ANSI 52-2017 pdf free download.Supplemental flooring
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