Tungsten (W) Back Catalog number: 58174 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended BDE-1 2-Bromodiphenyl ether, 1.2ml x 50ug/ml, nonane Price on request 1538.18-K-T Triphenylene-d12, 1000µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 17777-56-9 Price on request 94509 EPA Method 8151 Standard Price on request