Description :
Tenders for Supply Of Certified Reference Material Pesticides And Pah - Dimethoate , Methyl Parathion , Malathion , Chlorpyriphos , Ethion , Gamma Hch , Epa Clp Organochlorine Pesticide Mix 2000 Microgram Per Ml In Hexane And Toluene In The Ratio 1 To 1 , Crm Epa 610 Pah Mix Varied Concentration In Methanol And Methylene Chloride In The Ratio 1 To 1
