Standards GB - Chinese national standards - Page 5140

pH primary reagent - Potassium hydrogen phthalate

Standard published on 31.12.2008

Chemical reagent—Acetone

Standard published on 6.8.2023

Codes for degree of the People’s Republic of China

Standard published on 25.7.2003

Codes for levels of language proficiency and foreign language test grades

Standard published on 15.10.2009

Garden tools - General requirements

Standard published on 30.12.2008

Chemical reagent - Glycerol

Standard published on 12.5.2011

Classification, terminology and numbering for parts and assemblies of the time measuring instruments - Classification, terminology and numbering for parts and assemblies of mechanical wrist watch movements

Standard published on 31.7.2008

Performance andtest methods of the 30 channels pulse code modulation multiplex equipment at 2048 kbit/s

Standard published on 21.12.1995

Chemical reagent - Carbon tetrachloride

Standard published on 12.5.2011

Acoustics—Determination of sound power levels and sound energy levels of noise sources using sound pressure—Precision methods for reverberation test rooms

Standard published on 7.9.2023