Method 1640 Tuning Standard Back Catalog number: 53147 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 679379 Demeton-S-methyl-sulfone, 10 µg/ml, Cyclohexane, Price on request 2572.26-200-T Naphtho[8,1,2-bcd]perylene, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 88-89-6 Price on request XA13645500AL Fipronil-sulfone, 100 ng/µl, 1ml Price on request