甲醇中六氯乙烷溶液标准物质  Hexachloroethane solution reference material in methanol  2mL  

甲醇中六氯乙烷溶液标准物质  Hexachloroethane solution reference material in methanol  2mL  

二硫化碳中1,1,2-三氯乙烷溶液标准物质  Reference material for 1,2- trichloroethane solution in carbon disulfide  2mL  

二硫化碳中1,1,2-三氯乙烷溶液标准物质  Reference material for 1,2- trichloroethane solution in carbon disulfide  2mL  

二硫化碳中1,1,2-三氯乙烷溶液标准物质  Reference material for 1,2- trichloroethane solution in carbon disulfide  2mL  

二硫化碳中1,1,1-三氯乙烷溶液标准物质  1,1, 1-trichloroethane solution reference material in carbon disulfide  2mL  

二硫化碳中1,1,1-三氯乙烷溶液标准物质  1,1, 1-trichloroethane solution reference material in carbon disulfide  2mL  

甲醇中5种挥发性卤代烃混合溶液标准物质  Five volatile halogenated hydrocarbons in methanol as reference materials for mixed solution  2mL  

甲醇中5种挥发性卤代烃混合溶液标准品  Standard for 5 volatile halogenated hydrocarbons in methanol  2mL  

甲醇中反式-1,2-二氯乙烯溶液标准物质  Reference material for trans -1, 2-dichloroethylene solution in methanol  2mL