PCB's and Related Compounds

Reference Materials - Both Neat and in Solution - for PCBs, PBBs, Dioxins, Furans, Ethers, and PCB Metabolites

Polychlorinated biphenyls (PCBs) are industrial compounds which are now known to be among the most persistent and widely distributed pollutants in the global ecosystem. Their physical and chemical stability, along with their excellent dielectric properties led to the widespread commercial use of these compounds. The stability of PCBs accounts for the environmental persistence of these materials. Since they are lipophilic, they tend to bioaccumulate in the fatty tissues of animals, including humans. The manufacture of PCBs was prohibited as of January 1, 1979 [see: Section 6(e) TSCA, 15 U.S.C. 2605(e)]. However, in 1984 ULTRA Scientific obtained an exemption from US EPA for the manufacture of small quantities of pure PCBs for research and development purposes(see 40 CFR Part 761, 49 FR 28163 and 51 FR 28569). All of these materials are manufactured under ULTRA’s ISO 9001 quality system.

Each component in a reference standard is pre-analyzed, with most analytes being >99% pure, and the solvents are of the highest quality available. All solutions are gravimetrically prepared to a precision of ± 0.5%. A certificate showing the actual weight of each analyte is supplied with each mixture.

• PCB's and Related Standards
• Ultra Scientific Environmental Standards (6.9M)