1.1 本试验方法描述了通过使用电导率测试确定水溶性导电物质的总浓度来评估喷砂清理磨料是否存在导电电位和离子污染物的程序。 1.2 本试验方法既不确定存在的离子种类，也不提供每种种类的定量结果。 1.3 本试验方法基于相似尺寸磨料之间的体积比较。和重量比较相比，体积比较和磨料表面积的关系更密切。 1.4 以国际单位制表示的数值应视为标准值。本标准不包括其他计量单位。 1.5 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的用户有责任在使用前制定适当的安全、健康和环境实践，并确定监管限制的适用性。 1.6 本国际标准是根据世界贸易组织技术性贸易壁垒（TBT）委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认标准化原则制定的。 ====意义和用途====== 4.1 研磨介质可能包含来自制造（用污染水淬火）、运输、储存或使用（对于重复使用的研磨剂）的自然离子污染（例如海滩砂）。磨料喷砂清理过程中，磨料上的离子污染可能转移到表面，导致潜在的渗透起泡、加速膜下腐蚀和涂层过早失效。 4.2 本试验方法描述了用于评估磨料上导电物质水平的车间/现场程序。 4.3 SSPC（AB）和ISO 11126发布的磨料标准提供了磨料水溶性污染物的公差水平。

1.1 This test method describes a procedure for assessing blast cleaning abrasives for the presence of conductive-potential, ionic contaminants by determining the total concentration of water soluble conductive species using a conductivity test. 1.2 This test method does not identify the ionic species present nor provide quantitative results on each species. 1.3 This test method is based on a volume comparison among abrasives of similar sizes. A volume comparison is more closely related to surface area of the abrasives than is a weight comparison. 1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.5 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. ====== Significance And Use ====== 4.1 Abrasive media may contain ionic contamination naturally (for example, beach sand), from manufacturing (quenching with contaminated water), transportation, storage or use (in the case of abrasive that is reused). Ionic contamination on the abrasive may transfer to the surface during abrasive blast cleaning, resulting in potential osmotic blistering, accelerated underfilm corrosion and premature coating failure. 4.2 This test method describes a shop/field procedure for assessing the level of conductive species on an abrasive. 4.3 Abrasive standards published by SSPC (AB) and ISO 11126 provide tolerance levels for water soluble contaminants of the abrasive.