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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| NB/T 20581-2021 |
Technical Guidelines for Commissioning of Steam Generator Blowdown System in Pressurized Water Reactor Nuclear Power Plant {译} 压水堆核电厂蒸汽发生器排污系统调试技术导则 |
China Energy Industry
Standards Pre down |
 English PDF |
| NB/T 10841-2021 |
Recommended practices for complex pre-control of downhole faults in shale gas horizontal well drilling {译} 页岩气水平井钻井井下故障复杂预控推荐做法 |
China Energy Industry
Standards Pre down |
English PDF |
| SL/T 796—2020 |
Technical Guidelines for Water Reduction and Prevention in the Downstream of Small Hydropower Stations {译} 小型水电站下游河道减脱水防治技术导则 |
China Water Resources Industry
Standards Pre down |
English PDF |
| SY/T 7010-2014 |
Blowout preventer used in downhole operation 井下作业用防喷器 |
China Oil & Gas Industry
Standards Pre down |
English PDF |
| NB/T 20262-2014 |
Design criteria for steam generator blowdown system of pressurized water reactor nuclear power plants 压水堆核电厂蒸汽发生器排污系统设计准则 |
China Energy industry
Standards Pre down |
English PDF |
| SY/T 6120-2013 |
Specification for blowout prevention during down-hole operations in oil well 油井井下作业防喷技术规程 |
China Oil & Gas Industry
Standards Pre down |
English PDF |
| NB/T 20007.17-2012 |
Stainless steel for pressurized water reactor nuclear power plants. Part17: Martensitic stainless steel forgings used for internal hold down springs 压水堆核电厂用不锈钢 第17部分：堆内构件压紧弹性环用马氏体不锈钢锻件 |
China Energy industry
Standards Pre down |
English PDF |
| SY/T 6640-2012 |
Calibration method for the down hole electronic pressure gauge 电子式井下压力计校准方法 |
China Oil & Gas Industry
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English PDF |
| SY/T 6757-2009 |
Calibration method of the verfication device for downhole pressure gauge 井下压力计检定装置校准方法 |
China Oil & Gas Industry
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English PDF |
| SY/T 6231-2006 |
Electronic downhole pressure gauge 电子式井下压力计 |
China Oil & Gas Industry
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English PDF |
| HJ/T 241-2005 |
The principle and method of confirm limits for exhaust smoke from lug-down mode for in-use motor vehicles with C.I.E. (compression ignition engine) 确定压燃式发动机在用汽车加载减速法排气烟度排放限值的原则和方法 |
China Environmental Protection Industry
Standards Pre down |
English PDF |
| SY/T 5587.5-2004 |
Codes for conventional workover job. Part 5: Preparation of well bore for downhole operation 常规修井作业规程 第5部分：井下作业井筒准备 |
China Oil & Gas Industry
Standards Pre down |
English PDF |
| SY/T 5997-1994 |
(Bourdon tube pressure gauge downhole) 弹簧管式井下压力计 |
China Oil & Gas Industry
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English PDF |
| QB/T 1760-1993 |
(Pre-down extension) 羽绒预分机 |
China Light Industry
Standards Pre down |
English PDF |
| QB/T 1531-1992 |
(Press down collar Machine) 压上下领机 |
China Light Industry
Standards Pre down |
English PDF |
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