EPA Method 8260B Surrogate Standard Back Catalog number: 23012 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended M326031 6β-Μethyl Prednisolone 21-Acetate (>90%), 2,5mg Price on request 10507.7-K-ME Methylhexanamine hydrochloride,1000 µg base/mL,MeOH,1mL, Price on request S-4543-20-DCX5 S-4543-20-DCM-5X1ML Naphthalene Mix, 20µg/mL in dichloromethane, 5 x 1ml Price on request