Method 200.8 Single Element Kit Back Catalog number: 52251 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 680124 Pentachlorobenzene, 100 µg/ml, Cyclohexane, 1ml Price on request C16610000 Pyrazophos, 250mg Price on request 66125 2',3,4,5,6'-Pentachlorobiphenyl Price on request