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| International Standard Category: Steels |
GB 222-1984 Method of sampling steel for determination of chemical composition and permissible variations for product analysis
钢的化学分析用试样取样法及成品化学成分允许偏差 ;
| Category No.: | 77.080.20 | Valid Status: | superseded |
| Issued Organization: | China Steel Industry Association | Issued Date: | 1983-12-08 |
| Implemented Date: | 1984-12-7 | Abolished Date: | |
| Superseded Standard.: | GB/T 222-2006 Permissible Tolerances for Chemical Composition of Steel Products GB/T 20066-2006 Steel and Iron-Sampling and Preparation of Samples for the Determination of Chemical Composition |
Superseded Date: | 2006-8-1 |
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