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ASTM A754/A754M-2008 X射线荧光涂层厚度的标准试验方法

ASTM A754/A754M-2008 X射线荧光涂层厚度的标准试验方法

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资料描述

【英文标准名称】: Standard Test Method for Coating Weight (Mass) of Metallic Coatings on Steel by X-Ray Fluorescence
【原文标准名称】: X射线荧光涂层厚度的标准试验方法
【标准号】: ASTM A754/A754M-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】: A05.07
【标准类型】: (Test Method)
【标准水平】: ()
【中文主题词】:
【英文主题词】: aluminum zinc-coating; coating; coating weight (mass); coatings-metallic; metallic coated; sheet; steel sheet; tin mill products; X-ray fluorescence; zinc coating; zinc-5 % aluminum coating; Aluminum coatings; Coating weight; Electrodeposited co
【摘要】: 1.1 This test method covers the use of X-ray fluorescence (XRF) for determining the coating weight (mass) of metallic coatings on steel sheet. The test method is intended to be used for x201C;on-linex201D; measurements of coating on continuous production lines. 1.2 This test method is applicable to the coatings covered by the following ASTM specifications: A 599/A 599M, A 623, A 623M, A 653/A 653M, A 792/A 792M, A 875/A 875M, A 879/A 879M, A 918, and A 924/A 924M. It may be applicable to other coatings, providing that the elemental nature of the coating and substrate are compatible with the technical aspects of XRF such as the absorption coefficient of the system, primary radiation, fluorescent radiation, type of detection. 1.3 This test method includes the procedure for developing a single standard determination of coating weight (mass). 1.4 This test method includes procedures for both X-ray tube and isotope coating weight (mass) measuring instruments. 1.5 The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the specification. 1.6 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】: A29
【国际标准分类号】: 17_040_20
【页数】: 8P.;A4
【正文语种】: 英语

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