BTEX Standard Back Catalog number: 92794 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 90126R Aroclor 1242 Price on request 679844 Tri-o-cresyl phosphate, 100 µg/ml, Methanol, 5ml Price on request 677903 Edifenphos, 100 µg/ml, Acetonitrile, 1ml Price on request