Tiêu chuẩn quốc tế

• Số hiệu / Standard Number: ASTM C1771-19
• Năm ban hành / Publication date: 2019
• Tình trạng / Status: A - Còn hiệu lực
• Tên tiếng Anh / Title in English: Standard Test Method for Determination of Boron, Silicon, and Technetium in Hydrolyzed Uranium Hexafluoride by Inductively Coupled Plasma—Mass Spectrometer After Removal of Uranium by Solid Phase Extraction
• Chỉ số phân loại Quốc tế (ICS) / By field: 27.120.30 - Vật liệu phân rã
• Số trang / Page: 8

Phạm vi áp dụng / Scope of standard

5.1 This method is capable of measuring the concentration of boron, silicon, and technetium in UF₆. Limits for these contaminants are set in Specifications C787 and C996.

1.1 This test method covers the determination of boron, silicon, and technetium in hydrolyzed uranium hexafluoride (UF₆) 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.