Total Water Supply Kit (NELAC) Back Catalog number: 38181 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 673856 1,2,4-Trichlorobenzene, 100 µg/ml, n-Hexane, 5ml Price on request 679542 Cephapirin, 10mg Price on request 1746.9-K-IO 3-Methylbenzofuran, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 21535-97-7 Price on request