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GB/T 223.66-1989 Active
GB/T 223.66-1989 Methods for chemical analysis of iron, steel and alloy—The thiocyanate chlorpromazine hydrochloride—chloro form extraction photometric method for the determination of tungsten content
General Product Information
| Committee | The General Research Institute of Steel of the Ministry of Metallurgical Industry |
|---|---|
| Document Type | National standards |
| Publisher Name | The National Technical Supervision Bureau |
| Standard Status | Active |
| Standard Code | GB/T 223.66-1989 |
| CCS | Analysis methods for steel and iron alloys |
| ICS | Black metals |
| Implement Date | 1990-07-01 |
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