1.1 This specification covers woven burlap fabrics, saturated with either asphalt or refined coal-tar, as specified by the purchaser, for use in the membrane system of roofing or waterproofing or as specified by the manufacturer.

1.1.1 Asphalt-saturated burlap fabric shall be used with asphalt base plying cement; typical ones are mopping asphalts conforming to Specifications D312, D449, or appropriate solvent-bearing bituminous materials.

1.1.2 Coal-tar-saturated burlap fabric shall be used with coal-tar base plying cements; typical ones are coal-tar pitches conforming to Specification D450, or appropriate solvent-bearing bituminous materials.

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 non-conformance with the standard.