Standards GB - Chinese national standards - Page 300

Determination of fluoride chloride ntrite nitrate salfate in the wet precipitation--Ion chromotography

Standard published on 1.7.1992

Determination of sulfate in the wet precipitation

Standard published on 1.7.1992

Determination of nitrite in the wet precipitation--N-(1-naphthyl)-1 2-diaminoethane dihydrochloride spectrophotometry

Standard published on 1.7.1992

Determination of nitrate in the wet precipitation

Standard published on 1.7.1992

Determination of chloride in wet precipitation--Ferrithiocyanate spectrophotometry

Standard published on 1.7.1992

Generic specification for electronic lightingcontrol equipments

Standard published on 15.7.1992

Outline dimension series of infrared detectors

Standard published on 15.7.1992

Measuring methods for paramaters of infrared detectors

Standard published on 30.12.2011

Recycled aluminium

Standard published on 20.8.2021

Scraps of copper and copper alloy

Standard published on 29.9.2020