Design of materials for new SRMs is accomplished in cooperation with materials and analysis experts from industry. Specifications for composition, homogeneity, and quantity are based on current and projected industry needs. Value-assignment projects are designed to include high-performance analytical methods at NIST, state-of-the-art laboratory methods in industry, and classical chemistry methods where available and appropriate. The input of industry has been obtained through interlaboratory studies designed to provide high-quality results for SRM value assignment and to provide data representative of the performance of instrumental analysis methods in industry laboratories. This performance data can be used to improve standard test methods.
In the past several years, the following SRMs have been developed or renewed in collaboration with industry:
Standard Methods of Test:
The following industry standard method of test was developed and approved with significant contributions by NIST.
- ASTM International F2617-08 Standard Test Method for Identification and Quantification of Chromium, Bromine, Cadmium, Mercury, and Lead in Polymeric Material Using Energy Dispersive X-ray Spectrometry
The following industry standard method of test is currently undergoing improvements:
- D6247-98(2004) Standard Test Method for Analysis of Elemental Content in Polyolefins By X-Ray Fluorescence Spectrometry