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首页 > 技术与支持 > ASTM D4811
ASTM D4811
点击次数:40 发布时间:2019-08-13

ASTM D4811

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ASTM D4811简介

ASTM D4811是用作屋面防雨板的非硫化(未固化)橡胶薄板的标准规范:

本规范规定了由EPDM(乙烯丙烯三元共聚物)或CR(氯丁橡胶)制成的、拟用于防水屋面防雨板的非硫化(未固化)橡胶薄板在空气中的曝露测试。

ASTM D4811英文简介

1. Scope

1.1 This specification covers nonvulcanized (uncured) rubber sheet made of EPDM (ethylene-propylene-diene terpolymer) or CR (polychloroprene) intended for use as watertight roof flashing exposed to the weather.

1.2 The tests and property limits used to characterize these flashing materials are specific for each classification and are minimum values to make the product fit for its intended purpose.

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 non-conformance with the standard.

1.4 In-place roof system design criteria, such as fire resistance, field seaming strength, material compatibility, and uplift resistance, among others, are beyond the scope of this specification.

1.5 The following precautionary caveat pertains to the test methods portion only, Section 8, of this specification: This standard may involve hazardous materials, operations, and equipment. This standard does not purport to address the safety concerns 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.

2. Referenced Documents

ASTM Standards

D412 Test Methods for Vulcanized Rubber and Thermoplastic Elastomers--Tension

D471 Test Method for Rubber Property--Effect of Liquids

D518 Test Method for Rubber Deterioration--Surface Cracking

D573 Test Method for Rubber--Deterioration in an Air Oven

D624 Test Method for Tear Strength of Conventional Vulcanized Rubber and Thermoplastic Elastomers

D1079 Terminology Relating to Roofing and Waterproofing

D1149 Test Methods for Rubber Deterioration--Cracking in an Ozone Controlled Environment

D1204 Test Method for Linear Dimensional Changes of Nonrigid Thermoplastic Sheeting or Film at Elevated Temperature

D1418 Practice for Rubber and Rubber Latices--Nomenclature

D2137 Test Methods for Rubber Property--Brittleness Point of Flexible Polymers and Coated Fabrics

D3182 Practice for Rubber--Materials, Equipment, and Procedures for Mixing Standard Compounds and Preparing Standard Vulcanized Sheets

G151 Practice for Exposing Nonmetallic Materials in Accelerated Test Devices that Use Laboratory Light Sources

G154 Practice for Operating Fluorescent Ultraviolet (UV) Lamp Apparatus for Exposure of Nonmetallic Materials

G155 Practice for Operating Xenon Arc Light Apparatus for Exposure of Non-Metallic Materials

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