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This specification covers asphalt-saturated organic felt used in roofing and waterproofing. Two types of asphalt-saturated felts are presented: type I - commonly called No. 15 asphalt felt, and type II - commonly called No. 30 asphalt felt. In the process of manufacture a single thickness of dry felt shall be saturated with an asphaltic saturant. The methods for the determination of openness of the perforations in saturated felts are presented in detail.
This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.
1.1 This specification covers asphalt-saturated organic felts, with or without perforations, intended to be used with asphalts conforming to the requirements of Specification in the construction of built-up roofs, and with asphalts conforming to the requirements of Specification in the construction of water proofing 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 non-conformance with the standard.
1.3 The following safety hazards caveat pertains only to the test method portion, Section , of this specification: 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 and health practices and determine the applicability of regulatory limitations prior to use.
1.4 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.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D70 Test Method for Density of Semi-Solid Bituminous Materials (Pycnometer Method)
D146/D146M Test Methods for Sampling and Testing Bitumen-Saturated Felts and Woven Fabrics for Roofing and Waterproofing
D312/D312M Specification for Asphalt Used in Roofing
D449/D449M Specification for Asphalt Used in Dampproofing and Waterproofing
D1079 Terminology Relating to Roofing and Waterproofing
D6136/D6136M Test Method for Kerosine Number of Unsaturated (Dry) Felt by Vacuum Method
ICS Number Code 91.100.50 (Binders. Sealing materials)
UNSPSC Code 30151503(Roofing fabrics); 30151500(Roofing materials)
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ASTM D226 / D226M-17, Standard Specification for Asphalt-Saturated Organic Felt Used in Roofing and Waterproofing, ASTM International, West Conshohocken, PA, 2017, www.astm.orgBack to Top