Air quality--Determination of nitrobenzene(mononitro and dinitro-compound)--Reduction by zinc-N-(1-Naphthyl) ethylene diamine dihydrochloride spectrophotometric method

Norma vydána dne 19.1.1995

Air quality--Determination of aniline--N-(1-naphthyl)ethylene diamine dihydrochloride spectrophotometric method

Norma vydána dne 19.1.1995

Water quality--Determination of vanadium--BPHA extraction spectrophotometric method

Norma vydána dne 19.1.1995

Water quality--Determination of carbon disulfide--Diethylamine cupric acetate spectrophotometric method

Norma vydána dne 19.1.1995

Water quality--Determination of selenium--Graphite furnace atomic absorption spectrometric method

Norma vydána dne 19.1.1995

Acoustics--Speech articulation testing method

Norma vydána dne 15.3.1995

Test method for measuring resistivity of monocrystal silicon—In-line four-point probe and direct current two-point probe method

Norma vydána dne 21.5.2021

General rules for reliability test of electromagnetic relay for control circuits

Norma vydána dne 18.6.2008

Technical guides for evaluating the saving of iron and steel product in enterprise

Norma vydána dne 8.4.2009

Codes for ports and other locations of the People""s Republic of China

Norma vydána dne 11.10.2021