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        首頁 / 新聞動態 /冷熱沖擊試驗箱ASTM D4811標準介紹

        冷熱沖擊試驗箱ASTM D4811標準介紹

        2018-12-25 16:22:00

        本頁面標準信息均來源于網絡收集,或由參與標準制定的供應商提供,只作為參考使用,為確保測試結果的準確性、節省您的時間,如需ASTM D4811標準詳細信息或ASTM D4811具體測試方法,歡迎與我們技術人員聯系或給我們留言,我們將為您相關的技術支持。


        ASTM D4811標準介紹

        ASTM D4811簡介

        ASTM D4811是用作屋面防雨板的非硫化(未固化)橡膠薄板的標準規范:

        本規范規定了由EPDM(乙烯丙烯三元共聚物)或CR(氯丁橡膠)制成的、擬用于防水屋面防雨板的非硫化(未固化)橡膠薄板在空氣中的曝露測試。


        ASTM D4811英文簡介


        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


        ▼ASTM D4811第三方檢測機構

        以上標準信息來自互聯網搜索整理,如需了解完整的ASTM D4811的信息或ASTM D4811標準解讀,歡迎詳詢。

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