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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| SY/T 6671-2006 |
Recommended practice for classification of locations for electrical installations at petroleum facilities classified asa class Ⅰ, zone 0, zone 1, and zone 2 石油设施电气设备安装区域一级、0区、1区和2区区域划分推荐作法 |
China Oil & Gas Industry
Standards Recommended practice classification |
 English PDF |
| SY/T 10041-2002 |
Recommended practice for classification of locations for electrical installations at petroleum facilities classified as class I, division 1 and division 2 石油设施电气设备安装一级一类和二类区域划分的推荐作法 |
China Oil & Gas Industry
Standards Recommended practice classification |
English PDF |
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