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Standard Test Method for Metal Powder Skeletal Density by Helium or Nitrogen Pycnometry
| 분야 | |
|---|---|
| 적용범위 | 1.1?This test method covers determination of skeletal density of metal powders. The test method specifies general procedures that are applicable to many commercial pycnometry instruments. The method provides specific sample outgassing procedures for listed materials. It includes additional general outgassing instructions for other metals. The ideal gas law forms the basis for all calculations. 1.2?This test method does not include all existing procedures appropriate for outgassing metal materials. The included procedures provided acceptable results for samples analyzed during an interlaboratory study. The investigator shall determine the appropriateness of listed procedures. 1.3?Units?The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.3.1?State all numerical values in terms of SI units, unless specific instrumentation software reports volume or density, or both, using alternative units. In this case, present both reported and equivalent SI units in the final written report. Many instruments report skeletal density as g/cm3 instead of using correct SI units (kg/m3). 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. |
| 국제분류(ICS)코드 | |
| 페이지수 | 4 |
| Edition | 21 |
| No. | 표준번호 | 표준명 | 발행일 | 상태 |
|---|---|---|---|---|
| 1 | ASTM B923-23 | Standard Test Method for Metal Powder Skeletal Density by Helium or Nitrogen Pycnometry | 2023-11-15 | 표준 |
| 2 | ASTM B923-23 REDLINE | Standard Test Method for Metal Powder Skeletal Density by Helium or Nitrogen Pycnometry | 2023-11-15 | 표준 |
| 3 | ASTM B923-22 | Standard Test Method for Metal Powder Skeletal Density by Helium or Nitrogen Pycnometry | 2022-04-01 | 구판 |
| 4 | ASTM B923-22 REDLINE | Standard Test Method for Metal Powder Skeletal Density by Helium or Nitrogen Pycnometry | 2022-04-01 | 구판 |
| 5 | ASTM B923-21 | Standard Test Method for Metal Powder Skeletal Density by Helium or Nitrogen Pycnometry | 2021-06-01 | 구판 |
| 6 | ASTM B923-21 REDLINE | Standard Test Method for Metal Powder Skeletal Density by Helium or Nitrogen Pycnometry | 2021-06-01 | 구판 |
| 7 | ASTM B923-20 | Standard Test Method for Metal Powder Skeletal Density by Helium or Nitrogen Pycnometry | 2020-05-01 | 구판 |
| 8 | ASTM B923-20 REDLINE | Standard Test Method for Metal Powder Skeletal Density by Helium or Nitrogen Pycnometry | 2020-05-01 | 구판 |
| 9 | ASTM B923-16 REDLINE | Standard Test Method for Metal Powder Skeletal Density by Helium or Nitrogen Pycnometry | 2016-10-01 | 구판 |
| 10 | ASTM B923-16 | Standard Test Method for Metal Powder Skeletal Density by Helium or Nitrogen Pycnometry | 2016-10-01 | 구판 |
| 11 | ASTM B923-10 | Standard Test Method for Metal Powder Skeletal Density by Helium or Nitrogen Pycnometry | 2010-05-01 | 구판 |
| 12 | ASTM B923-02(2008) | Standard Test Method for Metal Powder Skeletal Density by Helium or Nitrogen Pycnometry | 2008-04-01 | 구판 |
| 13 | ASTM B923-02 | Standard Test Method for Metal Powder Skeletal Density by Helium or Nitrogen Pycnometry | 2002-10-10 | 구판 |
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