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ASTM C421-2008 预制块型和预制包覆管道隔热材料翻滚时易碎性的试验方法

ASTM C421-2008 预制块型和预制包覆管道隔热材料翻滚时易碎性的试验方法

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资料描述

【英文标准名称】: Standard Test Method for Tumbling Friability of Preformed Block-Type and Preformed Pipe-Covering-Type Thermal Insulation
【原文标准名称】: 预制块型和预制包覆管道隔热材料翻滚时易碎性的试验方法
【标准号】: ASTM C421-2008
【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】: C16.32
【标准类型】: (Test Method)
【标准水平】: ()
【中文主题词】:
【英文主题词】: mass loss; thermal insulating materials&x2014;block/ board; tumbling friability; Mass loss testing; Preformed thermal insulation; Tumbling friability; Abrasion resistance; Block and board thermal insulation; Friability (
【摘要】: Several test methods for measuring mass loss by abrasion and impact of preformed block-type and preformed pipe-covering-type thermal insulation have been used previously. It is believed that no single test method completely covers all factors involving such forces for different kinds of materials, but this test method is intended to provide a procedure that gives reproducible results. It is used for comparing the mass loss by tumbling before and after a specific treatment of the insulation, as agreed upon by the purchaser and the manufacturer.1.1 This test method covers determination of the mass loss of preformed block-type and preformed pipe-covering-type thermal insulation as a result of a combination of abrasion and impact produced by a laboratory tumbling mechanism. 1.2 The values stated in inch-pound units are to be regarded as the standard. The values in parentheses are provided for information only. 1.3 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 and health practices and determine the applicability of regulatory limitations prior to use.-
【中国标准分类号】: Q25
【国际标准分类号】: 27_22
【页数】: 2P.;A4
【正文语种】: 英语

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