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ASTM C1402-17 REDLINE
Standard Guide for High-Resolution Gamma-Ray Spectrometry of Soil Samples- 발행일 : 2017-06-01
- 발행기관 : ASTM
-
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상세정보
| 분야 | |
|---|---|
| 적용범위 | 1.1 This guide covers the identification and quantitative determination of gamma-ray emitting radionuclides in soil samples by means of gamma-ray spectrometry. It is applicable to nuclides emitting gamma rays with an approximate energy range of 20 to 2000 keV. For typical gamma-ray spectrometry systems and sample types, activity levels of about 5 Bq (135 pCi) are measured easily for most nuclides, and activity levels as low as 0.1 Bq (2.7 pCi) can be measured for many nuclides. It is not applicable to radionuclides that emit no gamma rays such as the pure beta-emitting radionuclides hydrogen-3, carbon-14, strontium-90, and becquerel quantities of most transuranics. This guide does not address the in situ measurement techniques, where soil is analyzed in place without sampling. Guidance for in situ techniques can be found in Ref (1) and (2).2 This guide also does not discuss methods for determining lower limits of detection. Such discussions can be found in Refs (3), (4), (5) , and (6). 1.2 This guide can be used for either quantitative or relative determinations. For quantitative assay, the results are expressed in terms of absolute activities or activity concentrations of the radionuclides found to be present. This guide may also be used for qualitative identification of the gamma-ray emitting radionuclides in soil without attempting to quantify their activities. It can also be used to only determine their level of activities relative to each other but not in an absolute sense. General information on radioactivity and its measurement may be found in Refs (7), (8), (9), (10) , and (11) and Standard Test Methods E181. Information on specific applications of gamma-ray spectrometry is also available in Refs (12) or (13). Practice D3649 may be a valuable source of information. 1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.4 This standard may involve hazardous material, operations, and equipment. 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. 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. |
| 국제분류(ICS)코드 | |
| 페이지수 | 10 |
| Edition | 17 |
이력정보
| No. | 표준번호 | 표준명 | 발행일 | 상태 |
|---|---|---|---|---|
| 1 | ASTM C1402-17 REDLINE상세보기 | Standard Guide for High-Resolution Gamma-Ray Spectrometry of Soil Samples | 2017-06-01 | 표준 |
| 2 | ASTM C1402-17상세보기 | Standard Guide for High-Resolution Gamma-Ray Spectrometry of Soil Samples | 2017-06-01 | 표준 |
| 3 | ASTM C1402-04(2009)상세보기 | Standard Guide for High-Resolution Gamma-Ray Spectrometry of Soil Samples | 2009-06-01 | 구판 |
| 4 | ASTM C1402-04상세보기 | Standard Guide for High-Resolution Gamma-Ray Spectrometry of Soil Samples | 2004-06-01 | 구판 |
| 5 | ASTM C1402-98상세보기 | Standard Guide for High-Resolution Gamma-Ray Spectrometry of Soil Samples | 1998-07-10 | 구판 |
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