GB/T 16983-2021
Chemical reagent—Dichloromethane
GB/T 25787-2010
4,4’-Sulfonyldiphenol(Bisphenol-S)
GB/T 4117-2008
Methylene chloride for industrial use
GB/T 7979-2020
Pulp—Determination of dichloromethane soluble matter
GB/T 6730.34-2017(\u82f1\u6587\u7248)
铁矿石 锡含量的测定 邻苯二酚紫-溴化十六烷基三甲胺分光光度法
HG/T 4119-2009
GB/T 7373-2006
Monochlorodifluoro methane for industrial uses
YS/T 1284-2018
1,1'-bis(diphenylphosphino)ferrocene palladium dichloride dichloromethane complex
GB/T 7372-1987
Dichlorodifluoromethane for industrial uses
SN/T 2933-2011
Determination of chloroform,benzene,carbon tetrachloride,chloropicrine,nitrobenzene and dichlorotoluene in cosmetics
HG/T 4715-2023
HG/T 4406-2012
HG/T 4246-2018
2,5-Dichluronitrobenzene
SN/T 3111-2012
Determination of triclosan in air freshening preparations-High performance liquid chromatography
QB/T 2718-2018
SN/T 3785-2014
Determination of 4,4’-diaminodiphenylmethane in textiles for import and export
HG/T 4473-2012
GB/T 4117-1992
Methylene chloride for industrial use
GB 4065-1983
Fire extinguishing agent--Bromochlorodifluoro-methane
GB 4117-4118-1992
Methylene chloride for industrial use Trichloromethane for industrial use