EPA Method 551.1 Performance Check Soln Back Catalog number: 30104 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended S-4565-8K-ETX5 EN 15721 Internal Standard Stock Solution, procedure A 1382.2 Ethanol 8mL Pentanol-3 80µL (Gives a concentration of approx. 8mg/mL) Price on request MPFHXA Perfluoro-n-[1,2-13C2]hexanoic acid, 50µg/ml in MeOH, 1,2ml Price on request 70209 Methyl tert-butyl ether Price on request