Semi-Volatile Standard Back Catalog number: 93817 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 38179 Carpet Test Mix Price on request 679824 Trimethoprim, 100 µg/ml, Methanol, 1ml Price on request 3H153 2,2',4,4',5,5'-Hexachloro-3-biphenylol, 1.2ml x 50ug/ml, nonane Price on request