GB/T 24990-2010
Paper,board and pulps-Determination of chromium (English Version)
- Standard No.
- GB/T 24990-2010
- Language
- Chinese, Available in English version
- Release Date
- 2010
- Published By
- General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
- Latest
- GB/T 24990-2010
- Scope
- This standard specifies the determination method of trace chromium content in paper, cardboard and pulp. This standard applies to all kinds of paper, cardboard and pulp that can be digested dry or wet with nitric acid to detect the chromium content in the sample. The detection limit of the method depends on the instrument used. It is generally about 10 mg/kg by flame atomic absorption method, and it is generally about 50 μg/kg by graphite furnace atomic absorption method.
GB/T 24990-2010 Referenced Document
- GB/T 450 Paper and board.Sampling for testing and identification of machine and cross direction,wire side and felt side
- GB/T 462 Determination of moisture content of analytical samples of paper, paperboard and pulp*， 2023-09-07 Update
- GB/T 6682 Water for analytical laboratory use.Specification and test methods
- GB/T 740 Pulps-Sampling for testing
GB/T 24990-2010 history
- 2010 GB/T 24990-2010 Paper,board and pulps-Determination of chromium
