ASTM D2178 – Standard Specification for Asphalt Glass Felt Used in Roofing and Waterproofing
Description:
Scope
1.1 This specification covers glass felts impregnated to varying degrees with asphalt intended to be used with asphalts conforming to the requirements of Specification D312/D312M or D7654/D7654M in the construction of built-up roofs, and with asphalts conforming to the requirements of Specification D449/D449M in the construction of waterproofing systems.
1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the standard.
ASTM D2172