Method 1640 Tuning Standard Back Catalog number: 53147 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 677288 2,4,5-T, 100 µg/ml, Acetonitrile, 1ml Price on request 675630 Metconazole, 10 µg/ml, Ethyl acetate, 10ml Price on request 680572 PCB 28, 10.0 µg/ml, Isooctane, 10ml Price on request