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GB/T 15265-1994 Ambient air-Determination of dustfall-Gravimetric method via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
GB/T 14679-1993 Air quality. Determination of Ammonia. Sodium salicylate-sodium hypochlorite spectrophotometric method (USD) via email in 1 business day SUPERSEDED
HJ 696-2014 via email in VALID please email coc@codeofchina.com for quotation
GB/T 15263-1994 Ambient air-Determination of total hydrocarbons-Gas chromatographic method via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB/T 15437-1995 Ambient air-Determination of ozone-Indigo disulphonate spectrophotometry via email in 1-3 business day please email coc@codeofchina.com for quotation
GB/T 15434-1995 Ambient air-Determination of the mass concentration of fluoride-Method by filter sampling and fluorine ion-selective electrode analysis via email in 1-3 business day please email coc@codeofchina.com for quotation
GB/T 14669-1993 Air quality. Determination of ammonia. Ion selective electrode method (USD) via email in 1-3 business day VALID
GB/T 22105.3-2008 Soil quality - Analysis of total mercury、arsenic and lead contents in soils - Atomic fluorescence spectrometry - Part 3:Analysis of total lead contents in soils (USD) via email in 1-3 business day VALID
GB/T 15432-1995 Ambient air-Determination of total suspended particulates-Gravimetric method via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
GB/T 15438-1995 Ambient air-Determination of ozone-Ultraviolet photometric method via email in 1-3 business day please email coc@codeofchina.com for quotation
GB/T 15436-1995 Ambient air-Determination of nitrogen oxides-Saltzman method via email in 1-3 business day please email coc@codeofchina.com for quotation
GB/T 15501-1995 Air quality-Determination of nitrobenzene(mononitro- and dinitro-compound)-Reduction by zinc-N-(1-Naphthyl) ethylene diamine dihydrochloride spectrophotometric method via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
GB/T 14680-1993 Air quality-Determination of carben disulfide-Diethylamine spectrophometric method via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
GB/T 15505-1995 Water quality—Determination of selenium—Graphite furnace atomic absorption spectrometric method via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
GB/T 15504-1995 Water quality-Determination of carbon disulfide-Diethylamine cupric acetate spectrophotometric method via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
HJ 687-2014 Solid waste-Determination of Hexavalent Chromium-by Alkaline digestion/flame atomic absorption spectrophotometic (USD) via email in 1-3 business day VALID
GB/T 15516-1995 Air quality-Determination of formaldehyde-Acetylacetone spectrophotometric method via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
GB/T 14678-1993 Air quality-Determination of sulfuretted hydrogen, methyl sulfhydryl, dimethyl sulfide and dimethyl disulfide-Gas chromatography via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
GB/T 14668-1993 Air quality. Determination of ammonia. Nesslers reagent colorimetric method (USD) via email in 1-3 business day ABOLISHED
GB/T 15441-1995 Water quality-Determination of the acute toxicity-Luminescent bacteria test via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
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