SRMs track fire retardants in humans and e...(red concentrations of selected PBDEs and...)

Date:8/17/2007

red concentrations of selected PBDEs and other brominated flame retardants including hexabormocyclododecane (HBCD) in seven of the agencys existing Standard Reference Materials (SRMs) that are considered benchmarks for measurements of environmental pollutants.

Concentration values for PBDEs are now available for NISTs reference materials for house dust (SRM 2585), cod liver oil (SRM 1588b) and human blood serum (SRM 1589a). Newly certified values for PBDE concentrations in four other SRMs for whale blubber, mussel tissue and two types of fish tissue are expected to be available soon.

In collaboration with the Centers for Disease Control and Prevention (CDC), NIST also is developing four new SRMs based on human blood and milk. Two of these SRMs will have certified values for current PBDE concentrations to record the level of current human exposure. PBDEs will be added at higher levels for the other two materials to facilitate comparability of measurements among laboratories.

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Contact: John Blair john.blair@nist.gov 301-975-4261 National Institute of Standards and Technology (NIST) Source:Eurekalert

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