PCB 136, 10 µg/ml, Isooctane, 10ml Back Catalog number: 675791 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 679447 Heptachlor, 100 µg/ml, Methanol, 1ml Price on request 681813 D4-Ethylene thiourea, 10mg Price on request 54343 Calcium Hardness Price on request