Standard_Reference_Materials

Standard Reference Materials Preparation
ŠLester Lefkowitz
World-wide traceability of chemical analysis data is ensured by NIST through a system of key Standard Reference Materials and definitive methods of chemical analysis, such as isotope dilution mass spectrometry. As the U.S. member of the International Committee for Weights and Measures, NIST is responsible for providing the link between analytical measurements in the United States and the International System of Units.

Standard Reference Materials Preparation

ŠLester Lefkowitz

World-wide traceability of chemical analysis data is ensured by NIST through a system of key Standard Reference Materials and definitive methods of chemical analysis, such as isotope dilution mass spectrometry. As the U.S. member of the International Committee for Weights and Measures, NIST is responsible for providing the link between analytical measurements in the United States and the International System of Units.


Free use of this photo is restricted to materials that describe NIST programs directly. Copyright is owned by the photographer. To receive an unwatermarked copy of the photo for use describing NIST programs contact inquiries@nist.gov, (301) 975-6478. To use the photo as stock photography contact Lester Lefkowitz, 37 Huyler Ct., Setauket, N.Y., 11733, (516)751-8310.