Calibration Standard Mix 4 Back Catalog number: 52046 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 93988 PAH Standard, 1000µg/ml in methylene chloride, 1ml Price on request 79437 2-Chloroacetophenone Price on request 678365 D6-Pirimicarb, 100 µg/ml, Acetone, 1ml Price on request