CLP - Instrument Performance Check Solution Back Catalog number: 19167 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 19097 EPA Method 602 - Surrogate Standard Price on request 30222 2,4-Dichlorophenylacetic acid Price on request 10889.2-10MG Ethyl sulfate sodium salt,neat,neat,10mg, Price on request