BTEX Standard Back Catalog number: 94132 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 71157 Tetraethylene glycol Price on request M4H61 2',3',4',5'-Tetrachloro-4-[13C12]biphenylol, 1.2ml x 50ug/ml, toluene Price on request 673610 Folpet, 100 µg/ml, Ethyl acetate, 5ml Price on request