ASTM E1745-17 PDF Download

The ASTM E1745-17 standard specifies the requirements for flexible, preformed sheet membrane materials that are used as vapor retarders in contact with soil or granular fill under concrete slabs. The standard outlines the tests that need to be conducted on these materials, both on new materials and on materials that have been conditioned or exposed to simulate potential service conditions.

The standard classifies the membranes into three classes, and the materials need to meet certain criteria for water vapor permeance, tensile strength, and puncture resistance. In addition, there are optional requirements for flame spread, permeance after exposure to soil poisons or petroleum vehicles, and permeance after exposure to ultraviolet light, depending on specific conditions.

It's important to note that this standard does not cover bituminous vapor retarders, and there is a separate specification (ASTM E1993/E1993M) for information on bituminous vapor retarders.