EPA 1620 Standard 4 Back Catalog number: 52142 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended XA10330200AC Atrazine 13C3, 100μg/mL in Acetone, 1ml Price on request 681201 TFNG, 100 µg/ml, Acetonitrile, 1ml Price on request 3327.10-100 Captafol, 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 2425-06-1 Price on request