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GB/T 20975.4-2020 Active
GB/T 20975.4-2020 Methods for chemical analysis of aluminium and aluminium alloys—Part 4:Determination of iron content
Abstract
This part of GB/T 20975 specifies the spectrophotometric method with o-phenanthroline and the potassium dichromate titration method for determining the iron content in aluminum and aluminum alloys. This part is applicable to the arbitral determination of iron content in aluminum and aluminum alloys. The determination range of the spectrophotometric method with o-phenanthroline is 0.001% to 3.50%; the determination range of the potassium dichromate titration method is >3.50% to 65.00%.
General Product Information
| Document Type | National standards |
|---|---|
| Standard Status | Active |
| Standard Code | GB/T 20975.4-2020 |
| CCS | Analysis methods for light metals and their alloys |
| ICS | Aluminum and aluminum alloys |
| Implement Date | 2021-04-01 |
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