UCMR4 - Method 525.3 - Surrogate Mix Back Catalog number: 98747 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 32361 Naphthalene Price on request 680575 Thiometon-sulfone, 100 µg/ml, Cyclohexane, 1ml Price on request 82493 EPA Method 1666Labeled Standard Price on request