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Homepage>ASTM Standards>91>91.100>91.100.50>ASTM D6221_D6221M-00R21 - Standard Specification for Reinforced Bituminous Flashing Sheets for Roofing and Waterproofing
Released: 15.11.2021

ASTM D6221_D6221M-00R21 - Standard Specification for Reinforced Bituminous Flashing Sheets for Roofing and Waterproofing

Standard Specification for Reinforced Bituminous Flashing Sheets for Roofing and Waterproofing

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Standard number:D6221_D6221M-00R21
Released:15.11.2021
Status:Active
Pages:3
Section:04.04
Keywords:built-up; flashing for roofing; flashing for waterproofing; reinforced flashing;
DESCRIPTION

1.1 This specification covers factory-prepared reinforced bituminous sheet used in flashing. The bitumen used may be asphalt, coal-tar pitch, or polymer-modified bitumen. The reinforcement may include any one or a combination of organic (wood fiber), polyester, or glass fiber felts, woven fabrics, or thermoplastic films. Fine mineral powders, granules, or metal foils may be used as surfacing.

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.

1.3 The following precautionary statement pertains only to the test method portion, Section 7, 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, health, and environmental 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.