GB - Chinese national standards

Arc welding equipment—Part 3: Arc striking and stabilizing devices

Available languages: English, Chinese

Available design: electronic design (pdf), Print design

Arc welding equipment—Part 4: Periodic inspection and testing

Available languages: English, Chinese

Available design: electronic design (pdf), Print design

Arc welding equipment—Part 5: Wire feeders

Available languages: English, Chinese

Available design: electronic design (pdf), Print design

Arc welding equipment—Part 6: Limited duty equipment

Available languages: English, Chinese

Available design: electronic design (pdf), Print design

Arc welding equipment—Part 7: Torches

Available languages: English, Chinese

Available design: electronic design (pdf), Print design

Arc welding equipment—Part 8: Gas consoles for welding and plasma cutting systems

Available languages: English, Chinese

Available design: electronic design (pdf), Print design

Arc welding equipment—Part 9: Installation and use

Available languages: English, Chinese

Available design: electronic design (pdf), Print design

Test method for substitutional carbon content in silicon by infrared absorption

Available languages: English, Chinese

Available design: electronic design (pdf), Print design

Discharge standards of water pollutants for phosphate fertilizer industry

Available languages: English, Chinese

Available design: electronic design (pdf), Print design

Emission standard of polluants for caustic alkali and polyvinyl chloride industry

Available languages: English, Chinese

Available design: electronic design (pdf), Print design