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    ASTM B311-22

    Standard Test Method for Density of Powder Metallurgy (PM) Materials Containing Less Than Two Percent Porosity
    • 발행일 : 2022-09-01
    • 발행기관 : ASTM
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분야 02.05 : 금속 및 무기질 피막, 금속분말
적용범위

1.1?This test method covers the determination of density for powder metallurgy (PM) materials containing less than two percent porosity and for cemented carbides. This test method is based on the water displacement method.

Note 1:?A test specimen that gains mass when immersed in water indicates the specimen contains surface-connected porosity. Unsealed surface porosity will absorb water and result in calculated density values higher than the true value. This test method is not applicable if this problem occurs, and Test Methods B962 should be used instead.

1.2?Units?With the exception of the values for density and the mass used to determine density, for which the use of the gram per cubic centimetre (g/cm3) and gram (g) units is the long-standing industry practice, the values 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.

1.3?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.

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.
국제분류(ICS)코드 77.160 : 동력 금속학
페이지수 5
Edition 22

이력정보

No. 표준번호 표준명 발행일 상태
1 CSA B311:24상세보기 Safety code for manlifts 2024-01-01 표준
2 ASTM B311-22상세보기 Standard Test Method for Density of Powder Metallurgy (PM) Materials Containing Less Than Two Percent Porosity 2022-09-01 표준
3 ASTM B311-22 REDLINE상세보기 Standard Test Method for Density of Powder Metallurgy (PM) Materials Containing Less Than Two Percent Porosity 2022-09-01 표준
4 ASTM B311-17상세보기 Standard Test Method for Density of Powder Metallurgy (PM) Materials Containing Less Than Two Percent Porosity 2017-04-01 구판
5 ASTM B311-17 REDLINE상세보기 Standard Test Method for Density of Powder Metallurgy (PM) Materials Containing Less Than Two Percent Porosity 2017-04-01 구판
6 ASTM B311-13상세보기 Standard Test Method for Density of Powder Metallurgy (PM) Materials Containing Less Than Two Percent Porosity 2013-04-01 구판
7 ASTM B311-08상세보기 Standard Test Method for Density of Powder Metallurgy (PM) Materials Containing Less Than Two Percent Porosity 2008-12-01 구판
8 CAN/CSA-B311-02 (R2022)상세보기 Safety code for manlifts 2002-01-01 폐지
9 ASTM B311-93(1997)상세보기 Test Method for Density Determination for Powder Metallurgy (P/M) Materials Containing Less Than Two Percent Porosity 1997-01-01 구판
10 ASTM B311-93(2002)e1상세보기 Test Method for Density Determination for Powder Metallurgy (P/M) Materials Containing Less Than Two Percent Porosity 1993-12-15 구판

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