GB/T 497-1977 PDF English
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Basic data
| Standard ID | GB/T 497-1977 (GB/T497-1977) |
| Description (Translated English) | Standard heptane |
| Sector / Industry | National Standard (Recommended) |
| Classification of Chinese Standard | E49 |
| Word Count Estimation | 1,132 |
| Date of Issue | 11/30/1977 |
| Date of Implementation | 1/1/1978 |
| Older Standard (superseded by this standard) | GB 497-1965 |