GB/T 17097-1997

GB/T 4920-1985 Determination of sulphuric acidmist in tail gas in sulphuric acid concentration process--Barium chromate colorimetric method GB/T 5748-1985 Methods for airborne dust measurement in work place GB/T 6921-1986 Determination of the concentration of airborne particulate matters GB/T 6919-1986 Air quality--Vocabulary GB/T 8914-1988 Hygienic determination method of mercury in air of residential areas--Gold amalgamation-atomicabsorption spectrometric method GB/T 8913-1988 Hygienic determination method of sulfur dioxide in air of residential areas--Tetrachloromercurate (TCM)-pararosaniline spectrophotometric method GB/T 8912-1988 Hygienic determination method of arsenide in air of residential areas--Silver diethyldithiocarbamate spectrophotometric method GB/T 8911-1988 Hygienic determination method of carbon monoxide in air of residential areas--Method of replacing mercury