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NIST Standard Reference Materials - http://ts.nist.gov/ts/htdocs/230/232/232.htm
SRM lists over 1300 individual reference materials produced by NIST, with carefully assigned values for chemical composition and physical properties. MSDS, prices in US$ and sale to registered users, dispatched from Gaithersburg, MD. |
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Resource Technology Corp. - http://www.rt-corp.com/
RTC offers proficiency testing schedules, and manufacturers natural-matrix samples and certified reference materials in Laramie, WY. |
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LGC Reference Materials - http://www.lgc.co.uk/ref.asp
LGC produces and supplies high quality certified reference materials and biomaterials throughout Europe on behalf of ATCC, USP, EP, NIST and BCR. |
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Brammer Standard Company, Inc. - http://www.brammerstandard.com/
Offers analytical reference materials for spectroscopy from around the world based in Houston, TX. |
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A.S.O. Design - http://asocanada.com/
Supplier of Canadian certified reference materials (standards) for calibration of analytical instruments, and ISO-9000. Consulting services are also provided in the fields of X-ray fluorescence (XRF), X-Ray diffraction (XRD) and Thermal Analysis (DTA-TGA). Supplier of spare parts for Mettler thermoanalysers TA-1 and TA-2. |