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GB 8969-1988 Air quality; Determination of nitrogen oxides in ambient air; Griess-saltzman method (USD) via email in 1-3 business day
DB37/T 3458-2018 Environmental organisms—Determination of tritium and carbon 14 activities—Liquid scintillation counting method via email in VALID please email coc@codeofchina.com for quotation
GB/T 14676-1993 Air quality-Determination of trimethylamine-Gas chromatography via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
GB/T 15262-1994 Ambient air-Determination of sulfur dioxide-Formaldehyde absorbing-pararosaniline spectrophotometry via email in 1-3 business day please email coc@codeofchina.com for quotation
GB/T 14675-1993 Air quality-Determination of odor-Triangle odor bag method via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
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