Code of China Chinese Standard Classification Professional Classification ICS Classification Latest
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HJ 548-2009 Stationary source emissions. Determination of hydrogen chloride. Silver nitrate titration method via email in business day superseded
HJ/T 42-1999 Stationary source emission -- Determination of nitrogen oxide -- Ultraviolet spectrophotometric method 60.0 via email in 1 business day valid
HJ/T 45-1999 Stationary source emission -- Determination of asphaltic smoke -- Gravimetric method 90.0 via email in 1~3 business day valid
HJ/T 63.3-2001 Stationary source emission -- Determination of nickel -- Dimethylglyoxime with n-Butanol by spectrophotometry 90.0 via email in 1~3 business day valid
HJ/T 55-2000 Technical guidelines for fugitive emission monitoring of air pollutants 300.0 via email in 1~3 business day valid
HJ/T 64.2-2001 Stationary source emission -- Determination of cadmium -- Graphitic furnace atomic absorption spectrophotometric method 90.0 via email in 1~3 business day valid
HJ/T 30-1999 Stationary source emission -- Determination of chlorine --Methyl orange spectrophotometric method 60.0 via email in 1 business day valid
HJ/T 39-1999 Stationary source emission -- Determination of chlorobenzenes -- Gas chromatography 150.0 via email in 1~3 business day valid
GB 4920-1985 Determination of Sulphuric Acid Mist in Tail Gas in Sulphuric Acid Concentration Process - Barium Chromate Colorimetric Method 30.0 via email in 1 business day valid
HJ/T 37-1999 Stationary source emission -- Determination of acrylonitrile -- Gas chromatography 150.0 via email in 1~3 business day valid
HJ/T 64.1-2001 Stationary source emission -- Determination of cadmium -- Flame atomic absorption spectrophotometric method 90.0 via email in 1~3 business day valid
GB 5468-1991 Measuring method for smoke and dust of boiler emission 135.0 via email in 1~3 business day valid
HJ/T 63.2-2001 Stationary source emission -- Determination of nickel -- Graphitic furnace atomic absorption spectrophotometric method 90.0 via email in 1~3 business day valid
HJ/T 66-2001 Stationary source emission -- Determination of chlorobenzenes -- Gas chromatography 150.0 via email in 1~3 business day valid
HJ/T 40-1999 Stationary source emission -- Determination of benzo(a) pyrene -- High performance liquid chromatography 120.0 via email in 1~3 business day valid
HJ 500-2009 Technical Specifications for On-board Diagnostic System of Light Duty Vehicles 140.0 via email in 1~2 business day valid
HJ/T 63.1-2001 Stationary source emission -- Determination of nickel -- Flame absorption spectrophotometric method 90.0 via email in 1~3 business day valid
HJ/T 43-1999 Stationary source emission -- Determination of nitrogen oxid -- N(1-naphtye) -- Ethylenediamine dihydrochloride spectrophotometric method 105.0 via email in 1~3 business day valid
HJ/T 69-2001 Technical method for checking and ratifying the emission gross of soot and SO2 for coal-burning boiler -- Method of balance calculation between materials and products 210.0 via email in 1~3 business day valid
HJ/T 396-2007 Equipment Specifications and Quality Control Requirements for In-use Vehicles with Ignition Engine Exhaust Emission Test in Transient Loaded Mode 750.0 via email in 1~3 business day valid
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