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GB/T 7731.9-2008 Active
GB/T 7731.9-2008 Ferrotungsten—Determination of bismuth content—The bismuth iodide photometric method and inductively coupled plasma-atomic emission spectrometry
Abstract
This part of GB/T 7731 specifies the determination of bismuth content in tungsten iron by bismuth iodide photometry and inductively coupled plasma atomic emission spectrometry. This part is applicable to the determination of bismuth content in tungsten iron. The determination range (mass fraction) of bismuth iodide photometry is 0.010% to 0.060%; the determination range (mass fraction) of inductively coupled plasma atomic emission spectrometry is 0.010% to 0.15%.
General Product Information
| Document Type | National standards |
|---|---|
| Standard Status | Active |
| Standard Code | GB/T 7731.9-2008 |
| CCS | Analysis methods for steel and iron alloys |
| ICS | Iron alloy |
| Implement Date | 2009-04-01 |
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