ASTM D173/D173M is the standard specification for bitumen-saturated cotton fabrics used in roofing and waterproofing. It defines a technical reference for a material that has long been used where flexible, bituminous reinforcement is needed for protective building applications. By providing a common basis for product requirements and evaluation, it helps buyers, manufacturers, and specifiers compare materials more consistently and support reliable use in roofing and waterproofing systems.

ASTM D173/D173M standard overview

This ASTM standard focuses on bitumen-saturated cotton fabrics, a class of materials intended for roofing and waterproofing service. As a specification, it is used to describe the product in a controlled, technical way so that procurement and quality activities can align around the same reference document. ASTM D173/D173M is especially useful when a project or supply agreement needs a clear standard for material identity, consistency, and general fitness for its intended protective application.

Where is ASTM D173/D173M used?

ASTM D173/D173M is commonly used in roofing and waterproofing workflows where bitumen-saturated cotton fabric may serve as part of a protective building assembly. It is relevant to manufacturers, distributors, specifiers, and inspectors who work with these materials in product selection or acceptance decisions. The standard may also be referenced in purchasing documents and quality control programs when comparing fabrics intended for similar service conditions and performance expectations.

Practical importance of ASTM D173/D173M

In practice, ASTM D173/D173M helps reduce ambiguity when evaluating or procuring bitumen-saturated cotton fabrics. Using a recognized ASTM specification supports more consistent communication between suppliers and purchasers, which can improve compliance checks and limit avoidable material mismatches. It also provides a familiar technical benchmark for quality control, documentation, and product evaluation, especially when a project depends on standardized materials for roofing or waterproofing applications.

• Bitumen-saturated cotton fabric specification
• Roofing and waterproofing applications
• Material identification and procurement reference
• Quality control and compliance support