8270 Add-On Mix Back Catalog number: 95650 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 50127 pH 12.0 Standard @ 25°C Price on request 91354 Volatile Mix, 200µg/ml in MeOH, 1ml Price on request 678381 2,4'-DDT, 100 µg/ml, Acetonitrile, 5ml Price on request