ASTM D 228/D 228M:2021

1.1 These test methods cover procedures for sampling, examination, physical testing, and analyses of asphalt-containing materials used in roofing and waterproofing. These materials include but are not limited to roll roofing, cap sheets, and shingles. Any of these materials is allowed to be partially or fully coated, surfaced, or laminated, or a combination thereof. 1.2 The test methods and procedures in this standard appear in the following order: Section Content 6 Types of Roofing 7 Sampling 8 Mass and Area Determination 9 Selection of Representative Specimens 10 Moisture 11 Pliability 12 Mass Loss and Behavior on Heating 13 Tear Strength 14 Fastener Pull-Through Resistance 15 Preparation and Selection of Small Test Specimens for Analyses 16 Analysis of Glass Felt Products 17 Analysis of Roofing Products with Organic Felts 18 Ash of Desaturated Felt 19 Calculation 20 Adjusting Back Coating Fine Mineral Matter and Back Surfacing 21 Report 22 Precision and Bias 1.3 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. 1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

91.100.60