GB - Chinese national standards

Acoustics—Electroacoustic characteristics and measurements of spherically focusing ultrasonic transducers

Available languages: English, Chinese

Available design: electronic design (pdf), Print design

Acoustics—Measurement of sound pressure reflection coefficient, sound pressure transmission coefficient and absorption coefficient for underwater acoustical material sample—Travelling wave tube method

Available languages: English, Chinese

Available design: electronic design (pdf), Print design

Acoustics—Determination of sound power level and directivity character of power capacitor unit using sound pressure—Part 1: Precision method for hemi-anechoic rooms

Available languages: English, Chinese

Available design: electronic design (pdf), Print design

Acoustics—Determination of sound power level and directivity character of power capacitor using sound pressure—Part 2: Engineering methods for an essentially free field over a reflecting plane

Available languages: English, Chinese

Available design: electronic design (pdf), Print design

General specification for photoelectric tracking and measuring equipment

Available languages: English, Chinese

Available design: electronic design (pdf), Print design

General specification for the equipment of passing azimuth angle vertically

Available languages: English, Chinese

Available design: electronic design (pdf), Print design

Design specification of space materials science experimental facility—Multifunctional high temperature furnace

Available languages: English, Chinese

Available design: electronic design (pdf), Print design

Printing machinery—hard-cover book binding line

Available languages: English, Chinese

Available design: electronic design (pdf), Print design

Technical requirement of cleaning liquid waste recycling and emissions for heat treatment

Available languages: English, Chinese

Available design: electronic design (pdf), Print design

Technical requirement of cleaning liquid waste recycling and emissions for heat treatment

Available languages: English, Chinese

Available design: electronic design (pdf), Print design