| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| SY/T 6519-2001 | English | 999 |
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Classification of gases, vapors and dusts for electrical, equipment in hazardous (classified) locations
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SY/T 6519-2001
| Obsolete |
SY/T 6519-2001
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