CWA BTEX Back Catalog number: 38396 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 676338 Bifenazate-diazene, 100 µg/ml, Acetonitrile, 1ml Price on request 676743 Benzene, , , 10ml Price on request 52168 ICP-AES CRI, Soil Matrix, in 5% HNO3, 100ml Price on request