Tiêu chuẩn quốc tế

• Số hiệu / Standard Number: ASTM C1507-20
• Năm ban hành / Publication date: 2020
• Tình trạng / Status: A - Còn hiệu lực
• Tên tiếng Anh / Title in English: Standard Test Method for Radiochemical Determination of Strontium-90 in Soil
• Chỉ số phân loại Quốc tế (ICS) / By field: 13.080.05 - Xét nghiệm đất nói chung, bao gồm cả lấy mẫu
• Số trang / Page: 6

Phạm vi áp dụng / Scope of standard

1.1 This test method is applicable to the determination of ⁹⁰Sr in soil at levels of detection dependent on count time, sample size, detector efficiency, background, and chemical yield.

1.2 This test method is designed for the analysis of 10 g of soil, previously collected and treated as described in Practices C998 and C999. This test method may not be able to completely dissolve all soil matrices.

1.3 The values stated in SI units are to be regarded as standard. The values given in parentheses after SI units are provided for information only and are not considered standard.

1.4 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.

1.5 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.