GB - Chinese national standards

General specification for wireless microphone systems

Available languages: English, Chinese

Available design: electronic design (pdf), Print design

Basic requirements for products of digital topographic map

Available languages: English, Chinese

Available design: electronic design (pdf), Print design

Determination of drying time of coating and putty films

Available languages: English, Chinese

Available design: electronic design (pdf), Print design

Standard test method for distillation of crude petroleum—15-theoretical plate column

Available languages: English, Chinese

Available design: electronic design (pdf), Print design

Determination of hydrocarbons from butane (C4) to hexadecane (C16) in natural gas—Gas chromatographic method

Available languages: English, Chinese

Available design: electronic design (pdf), Print design

Test method for estimation of mean relative molecular mass of petroleum oils from viscosity measurements

Available languages: English, Chinese

Available design: electronic design (pdf), Print design

Natural gas—Determination of moisture—Part 1:Determination of water dew point by cooled surface condensation hygrometers

Available languages: English, Chinese

Available design: electronic design (pdf), Print design

Natural gas—Determination of moisture—Part 2Determination of water content by oscillation frequency difference method

Available languages: English, Chinese

Available design: electronic design (pdf), Print design

Marking of electrical equipment with ratings related to electrical supply—Safety requirements

Available languages: English, Chinese

Available design: electronic design (pdf), Print design

Liquid hydrocarbons dynamic measurement proving systems for volumetric meters—Part 1: General principles

Available languages: English, Chinese

Available design: electronic design (pdf), Print design