According to the 1998 guide, the flood test should typically last . The standard emphasizes that the duration must be agreed upon between the specifier and the contractor. A longer test increases the probability of finding a slow leak.
ASTM D5957-98 (reapproved as D5957-98R21) is a standard guide for flood testing horizontal waterproofing membranes on plaza decks and parking garages. It establishes procedures to verify watertightness by subjecting surfaces with slopes of 2% or less to standing water for 24 to 72 hours. Purchase the full standard at ASTM International ASTM International astm d5957-98 pdf
Although ASTM officially withdrew D5957-98 in 2016 (often due to redundancy or integration into newer standards like D5957-14, which was also later withdrawn), many professionals still reference the original 1998 version for legacy projects, contractual specifications written before withdrawal, or historical research. The PDF is sought after because: According to the 1998 guide, the flood test
Would you like to keep reading or discuss any of the details you've come across so far? ASTM D5957-98 (reapproved as D5957-98R21) is a standard
Many engineering schools and large construction firms subscribe to the "ASTM Compass" enterprise license.