2,2',4,5'-Tetrabromodiphenyl ether, 1.2ml x 50ug/ml, nonane Back Catalog number: BDE-49 Manufacturer: Wellington Laboratories Availability: 1 week Price on request - + Recommended S-4143-1-10B Low level Nitrogen & Sulfur Calibration Set Units: 1x1mL ampoules or 10mL screwcapped bottle Nitrogen introduced using Aniline / Sulfur introduced using di-n-Butyl Sulfide Catalogue No. Concentration Matrix: Benzene mg/kg (ppm) S-4143-0 Price on request 50183 Mix #3 Price on request 50401 Nitrate as (NO3-) Price on request