GB - Chinese national standards

Operation and maintenance specification for oil and gas pipeline

Available languages: English, Chinese

Available design: electronic design (pdf), Print design

Coke—Determination of phosphorus content—Reduced molybdophosphate spectrophotometric method

Available languages: English, Chinese

Available design: electronic design (pdf), Print design

Nominal torque series of the mechanical coupling

Available languages: English, Chinese

Available design: electronic design (pdf), Print design

Parking electronic toll collection—Part 1: Data format and technical specification for CPU card

Available languages: English, Chinese

Available design: electronic design (pdf), Print design

Parking electronic toll collection—Part 2Technical specification for terminal equipment

Available languages: English, Chinese

Available design: electronic design (pdf), Print design

Parking electronic toll collection—Part 3: Transaction process

Available languages: English, Chinese

Available design: electronic design (pdf), Print design

Parking electronic toll collection—Part 4Technical specification for key equipment testing

Available languages: English, Chinese

Available design: electronic design (pdf), Print design

Guideline for energy systems optimization

Available languages: English, Chinese

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Corrosion resistant alloy bimetal fittings for petroleum and natural gas industries

Available languages: English, Chinese

Available design: electronic design (pdf), Print design

Evaluation method of energy saving grade for gas burner

Available languages: English, Chinese

Available design: electronic design (pdf), Print design