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| Position: Chinese Standard in English/GB/T 7731.5-1987 |
| GB/T 7731.5-1987 Methods for chemical analysis of ferrotungsten. The molybdenum blue photometric method for the determination of silicon content (English Version) | |||
| Standard No.: | GB/T 7731.5-1987 | Status: | superseded |
| Language: | English | File Format: | |
| Word Count: | Price(USD): | 80.00 remind me the price change | |
| Implemented on: | Delivery: | ||
| Standard No.: | GB/T 7731.5-1987 |
| English Name: | Methods for chemical analysis of ferrotungsten. The molybdenum blue photometric method for the determination of silicon content |
| Professional Classification: | GB National Standard |
| Status: | superseded |
| Superseded by: | GB/T 7731.5-2021 Ferrotungsten—Determination of silicon content—Silicomolybdenum blue spectrophotometric method |
| Superseded on: | 2022-3-1 |
| Language: | English |
| File Format: | |
| Price(USD): | 80.00 |