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ASTM C1248-2008 用接缝密封胶着色多孔衬底的标准试验方法

ASTM C1248-2008 用接缝密封胶着色多孔衬底的标准试验方法

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资料描述

【英文标准名称】: Standard Test Method for Staining of Porous Substrate by Joint Sealants
【原文标准名称】: 用接缝密封胶着色多孔衬底的标准试验方法
【标准号】: ASTM C1248-2008
【标准状态】: 现行
【国别】: 美国
【发布日期】: 2008
【实施或试行日期】:
【发布单位】: 美国材料与试验协会(US-ASTM)
【起草单位】: C24.40
【标准类型】: (Test Method)
【标准水平】: ()
【中文主题词】:
【英文主题词】: joint sealants; porous substrates; sealants; staining; ultraviolet exposure; Accelerated aging/testing--sealants; Early staining; Exposure tests--ultraviolet; Granite; Joint seals/sealants; Limestone; Marble; Porous substrates; Sandstone; Sealants; Sta
【摘要】: Staining of building materials is an aesthetically undesirable occurrence. This test method evaluates the likelihood of a sealant causing an early stain on a porous substrate due to exudation of materials from the sealant. Since this is an accelerated test, it does not necessarily predict that the tested sealants will not stain or discolor porous substrates over longer periods of time.1.1 This test method covers four types of laboratory tests to determine if a joint sealant has a probability of staining a porous substrate (such as marble, limestone, sandstone, and granite). The tests are on compressed samples and include (1) storage under standard laboratory conditions, (2) storage in an oven, and (3) exposure in a fluorescent UV/condensation device, and (4) exposure in a xenon arc device. 1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only. 1.3 This standard does not purport to address all of the safety problems, 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 The committee with jurisdiction over this standard is not aware of any comparable standards published by other organizations.
【中国标准分类号】: Q24
【国际标准分类号】: 91_100_50
【页数】: 4P.;A4
【正文语种】: 英语

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