GB/T 7731.16-1999 Methods for chemical analysis of ferrotungsten-The flame atomic absorption spectrometric method for the determination of manganese content (English Version)
This standard specifies the determination of manganese content by flame atomic absorption spectrometry. This standard applies to the determination of manganese content in ferrotungsten. Measuring range: 0.05% to 0.70%.
GB/T 7731.16-1999 history
2007GB/T 7731.2-2007 Ferrotungsten-Determination of manganese content-The periodate spectrophotometric method and the flame atomic absorption spectrometric method
1999GB/T 7731.16-1999 Methods for chemical analysis of ferrotungsten-The flame atomic absorption spectrometric method for the determination of manganese content
GB/T 7731.16-1999 Methods for chemical analysis of ferrotungsten-The flame atomic absorption spectrometric method for the determination of manganese content was changed to GB/T 7731.2-2007 Ferrotungsten-Determination of manganese content-The periodate spectrophotometric method and the flame atomic absorption spectrometric method.