1.1 本试验方法包括测定水解六氟化铀（UF）中的硼、硅和锝 6. )通过固相萃取分离铀后，用电感耦合等离子体质谱（ICP-MS）。 1.2 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。 1.3 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。第7节“危险”中给出了一些具体的危险说明。 1.4 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====== 5.1 该方法能够测量超滤膜中硼、硅和锝的浓度 6. . 规范中规定了这些污染物的限值 C787 和 C996 .

1.1 This test method covers the determination of boron, silicon, and technetium in hydrolyzed uranium hexafluoride (UF 6 ) by Inductively Coupled Plasma Mass Spectrometry (ICP-MS) after separation of the uranium by solid phase extraction. 1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. Some specific hazards statements are given in Section 7 on Hazards. 1.4 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 ====== 5.1 This method is capable of measuring the concentration of boron, silicon, and technetium in UF 6 . Limits for these contaminants are set in Specifications C787 and C996 .