EPA Method 1618 Organochlorine Mix C Back Catalog number: 20138 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 15900-5627-100AN1 Chlorothalonil R471811 sodium, 100μg/ml in Acetonitrile, 1ml Price on request 10614.2-100-MEX5 O,O-Dimethylhydrogenphosphate-13C2 , sodium salt Price on request 23016 CLP Semi-Volatile Base/Neutral Surrogate Std Price on request