GB/T 19227-2003
Determination of nitrogen in coal and coke semi-micro gasification method
2009-05
- Standard No.
- GB/T 19227-2003
- Language
- Chinese
- Release Date
- 2003
- Published By
- General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
- Replace By
- GB/T 19227-2008
- Lastest
- GB/T 19227-2008
- Scope
- This standard specifies the method principle, reagents and materials, instruments and equipment, test preparation, measurement steps, result calculation and precision, etc. for the determination of nitrogen content in coal and coke by the semi-trace steam method. This standard applies to anthracite, bituminous coal and coke.
GB/T 19227-2003 history
- 2008 GB/T 19227-2008 Determination of nitrogen in coal
- 2003 GB/T 19227-2003 Determination of nitrogen in coal and coke semi-micro gasification method