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HG/T 3501-2011 Chemical reagent-Determination of the effective plate number of solid support in a gas chromatography via email in VALID please email coc@codeofchina.com for quotation
GB/T 9731-1988 Chemical reagent-General method for the determination of sulphur compounds 30 (USD) via email in 1-3 business day ABOLISHED
GB 15346-2012 Chemical reagent—Packaging and marking 300 (USD) via email in 1-3 business day VALID
GB/T 617-2006 Chemicalreagent - General method for the determination of melting range 90 (USD) via email in 1-3 business day VALID
GB/T 35496-2017 Chemical reagent―General method for the determination of nitrate 100 (USD) via email in 1 business day VALID
GB 15346-1994 Chemical reagent Packaging and marking via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB/T 31776-2015 Determination method of methanol content in methanol gasoline for motor vehicles 180 (USD) via email in 1-3 business day VALID
GB/T 6909.2-1986 Methods for analysis of water for boiler and for cooling; The determination of hardness; Low hardness 30 (USD) via email in 1-3 business day ABOLISHED
GB 610.2-1988 Chemical reagent-General method for the determination of arsenic (AgDDTC) 75 (USD) via email in 1-3 business day ABOLISHED
GB/T 6913.2-1986 Methods for analysis of water for boiler and for cooling; The determination of phosphates; Total inorganic phosphates 30 (USD) via email in 1-3 business day ABOLISHED
GB/T 618-1988 Chemical reagent-General method for the determination of crystallizing point 45 (USD) via email in 1-3 business day ABOLISHED
HG/T 3500-2011 Chemical reagent-Test method for polarity constant of liquid stationary phase in gas chromatography 120 (USD) via email in 1-3 business day VALID
GB/T 9732-1988 Chemical reagent-General method for the determination of ammonium 15 (USD) via email in 1-3 business day ABOLISHED
GB/T 609-2018 Chemical reagent—General method for the determination of total nitrogen 180 (USD) via email in 1-3 business day VALID
GB/T 6912.1-1986 Methods for analysis of water for boiler and for cooling; The determination of nitrates and nitrites; Ultraviolet spectrophotometry for nitrates 30 (USD) via email in 1-3 business day ABOLISHED
GB/T 3914-1983 Chemical reagents;The general rules of anodic stripping voltametry 105 (USD) via email in 1-3 business day ABOLISHED
GB/T 9728-2007 Chemical reagent—General method for the determination of sulphate 45 (USD) via email in 1-3 business day VALID
GB/T 6682-2008 Water for analytical laboratory use - Specification and test methods 150 (USD) via email in 1-3 business day VALID
GB/T 603-1988 Chemical reagent--Preparations of reagent solutions for use in test methods 210 (USD) via email in 1-3 business day ABOLISHED
GB/T 614-1988 Chemical reagent-General method for the determination of refractive index 30 (USD) via email in 1-3 business day ABOLISHED
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