This standard specifies methods for the determination of copper content in ferrotungsten by dicyclohexanone oxalyl dihydrazone spectrophotometry and flame atomic absorption spectroscopy (AAS). The standard applies to samples of ferrotungsten with copper content between 0.020% and 0.25%. The standard details the sample handling, reagent preparation and testing process to ensure the accuracy of the determination results. The standard provides an effective technical means for the accurate analysis of copper content in ferrotungsten products and is an important reference in related fields.
This summary is not the original standard text and is for reference only. For accurate information, please obtain it through official channels.
| Status | Active | ||
|---|---|---|---|
| CCS | H11 | ICS | 77.100 |
| Release Date | 2008-05-13 00:00:00 | Implementation Date | 2008-11-01 00:00:00 |
