GB/T 22279-2008
Guide for development of certified reference materials for the composition analysis and the physical property measurements of coal (English Version)
- Standard No.
- GB/T 22279-2008
- Language
- Chinese, Available in English version
- Release Date
- 2008
- Published By
- General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
- Latest
- GB/T 22279-2008
- Scope
- This standard specifies the preparation, homogeneity test, stability test, value determination and uncertainty assessment procedures of coal composition analysis and physical property measurement reference materials, as well as the requirements for the packaging, storage and preparation of reference material certificates of reference materials. This standard applies to the development and reproduction of reference materials for coal composition analysis and physical property measurement.
GB/T 22279-2008 Referenced Document
- GB 474 Method for preparation of coal sample*， 2008-12-04 Update
- GB/T 8170 Rules of rounding off for numerical values & expression and judgement of limiting values
- JJG 1006-1994 Technical Norm of Prim'ry Referencc Material
GB/T 22279-2008 history
- 2008 GB/T 22279-2008 Guide for development of certified reference materials for the composition analysis and the physical property measurements of coal
