EPA Method 622/8140 - Analytes Back Catalog number: 93126 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended C16174400 Phthalic acid, bis-methylglycol ester, certified, 0.25g Price on request 1899.17-100MG Norcodeine hydrochloride, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 14648-14-7 Price on request 70169 Endosulfan sulphate Price on request