概念
This specification covers non-vulcanized (未固化的) 由乙烯丙烯二烯二烯制成的橡胶板 (三元乙丙橡胶) 或聚氯丁二烯 (CR) for waterproof roofs exposed to weather. Design criteria for on-site roof systems, such as fire resistance, site joint strength, material compatibility and resistance to heave, are beyond the scope of this Code. The waterproofing material shall be formulated from the appropriate polymer type and other composite components and shall be able to bond to itself, roof film and substrate for waterproofing on-site splicing and repair. The performance requirements of pre-curing flash include thickness, green strength modulus, ultimate elongation, shelf stability, vulcanization, tensile strength and consolidation, dimensional stability and weather resistance. 所以, the performance requirements of post-vulcanization flash include tensile strength and setting, 伸长, 抗撕裂性, brittleness point, ozone resistance, air oven thermal aging, water absorption and weight changes, linear dimensional changes and weather resistance.

ASTM D4811-2016 Standard Specification for Non-vulcanized (Uncured) Rubber Sheets Used as Roofing Rain Sheets

半径
1.1 This specification covers non-vulcanized (未固化的) rubber sheets made from EPDM (ethylene-propenyl-diene terpolymer) or CR (polychloroprene), intended for use as waterproof roof waterproofing when exposed to weather.

1.2 The tests and performance limits used to characterize these flash materials are specific to each classification and are the minimum to make the product suitable for its intended use.

1.3 以 SI 单位或英寸-磅单位表示的值应单独视为标准值. 每个系统中指定的值可能不完全等效; 所以, 每个系统应相互独立使用. 组合两个系统的值可能会导致不合规.

1.4 Design criteria for on-site roof systems, such as fire resistance, site joint strength, material compatibility and pull resistance, are beyond the scope of this specification.

1.5 The following precautions apply only to the Test methods section of Section 8 本规范的: This standard may address hazardous materials, 操作和设备. This standard is not intended to address safety concerns associated with its use. 本标准的使用者有责任建立适当的安全和健康实践，并在使用前确定监管限制的适用性.