ASTM-B923 2008
$35.75
B923-02(2008) Standard Test Method for Metal Powder Skeletal Density by Helium or Nitrogen Pycnometry
Published By | Publication Date | Number of Pages |
ASTM | 2008 | 3 |
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 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 This test method uses SI units as standard in accordance with IEEE/ASTM SI 10 . State all numerical values in terms of SI units unless specific instrumentation software reports volume and/or density using alternate units. In this case, present both reported and equivalent SI units in the final written report. Many instruments report skeletal density as g/cm 3 instead of using correct SI units (kg/m 3 ).
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 and health practices and determine the applicability of regulatory limitations prior to use.
PDF Catalog
PDF Pages | PDF Title |
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1 | Scope Referenced Documents Terminology Summary of Test Method |
2 | Significance and Use Interferences Apparatus Reagents and Materials Hazards Sampling, Test Specimens, and Test Units Calibration and Standardization Conditioning |
3 | Procedure Calculations Report Precision and Bias Keywords |