Method 1640 Tuning Standard Back Catalog number: 53147 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 53111 Disc. Use P#52130 (100mL) Price on request 10208.11-K-ME Isobutyl 4-hydroxybenzoate, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 4247-02-3 Price on request 679881 4,4'-Diaminodiphenylmethane, 100 µg/ml, Acetonitr Price on request