Method 1640Mix A Back Catalog number: 53146 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 677823 D3-Mecoprop, 10.0 µg/ml, Acetone, 10ml Price on request 57847 Silver (Ag) Price on request DFP-SS-A Mass-Labelled PCDD/PCB Sampling Spike, 1.2ml, nonane Price on request