The GB/T 4324.11-2012 standard specifies the determination method of aluminum content in tungsten materials (including tungsten powder, tungsten bar, tungsten trioxide, etc.), which is applicable in the range of 0.0005% to 0.050%. The method is to digest the sample by microwave and acidify it, and then use the argon plasma Light source to excite the sample for light spectrum determination. The reagent requires the use of high-grade pure reagents and high-purity water. The standard details the preparation method of using muriatic acid settling main tungsten and aluminum standard solutions to ensure the accuracy and Reliability of the measurement results.
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 | H63 | ICS | 77.120.99 |
| Release Date | 2012-12-31 00:00:00 | Implementation Date | 2013-10-01 00:00:00 |