Normy GB - Čínské národní normy - strana 303

Determination of calcium and magnesium in the wet precipitation--Atomic absorption spectrophotometry

Norma vydaná dňa 1.7.1992

Collection and preservation of the wet precipitation sample

Norma vydaná dňa 1.7.1992

Determination of specific conductance in the wet precipitation

Norma vydaná dňa 1.7.1992

Determination of pH value of the wet precipitation--Glass electrode method

Norma vydaná dňa 1.7.1992

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

Norma vydaná dňa 1.7.1992

Determination of sulfate in the wet precipitation

Norma vydaná dňa 1.7.1992

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

Norma vydaná dňa 1.7.1992

Determination of nitrate in the wet precipitation

Norma vydaná dňa 1.7.1992

Determination of chloride in wet precipitation--Ferrithiocyanate spectrophotometry

Norma vydaná dňa 1.7.1992

Generic specification for electronic lightingcontrol equipments

Norma vydaná dňa 15.7.1992