Standard Test Methods for Water Vapor Transmission of Materials Ingestion-build-239834 BS 4064 also specifies the

BS 4064 also specifies the accuracy of determination appropriate to the various grades

Because of the poor reproducibility of this test method

in situ state of stress

BS 5942-3 on the specification for record playing equipment and cartridges is useful for:

Standard Test Methods for Water Vapor Transmission of Materials Ingestion-build-239834 BS 4064 also specifies the1. Scope 1. 1 These test methods cover the determination of water vapor transmission (WVT) of materials through which the passage of water vapor may be of importance, such as paper, plastic lms, other sheet materials, berboards, gypsum and plaster products, wood products, and plastics. The test methods are limited to specimens not over 1 in. [32 mm] in thickness except as provided in Section 9. Two basic methods, the Desiccant Method and the Water