EPA Method 524 & 624 - Internal Standard Back Catalog number: 19794 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2012.12-100-DS 3,3',4,4',5-Pentachlorobiphenyl, 100 µg/mL, Solvent-dimethylsulfoxide, Unit 1mL, # of units-1, Cas.no. 57465-28-8 Price on request XA05000021ME VOC-Mix 21, 200 ng/µl, 1ml Price on request 673296 Fluazifop-methyl, 10.0 µg/ml, Acetonitrile, 10ml Price on request