Verification II Standard 1 Back Catalog number: 53019 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 94447 8270 Spike Standard Price on request 92353 EPA Method 8141 Standard Price on request L-PFOS Sodium perfluoro-1-octanesulfonate, 1.2ml x 50ug/ml, methanol Price on request