Vendors and Sources of Isotopic Reference Material

IAEA - Reference and intercomparison samples such as VSMOW and GISP may be purchased from:
    International Atomic Energy Agency
    Section of Isotope Hydrology
    P. O. Box 100
    1400 Vienna, Austria

NIST - Reference materials such as NBS 18 and NBS 19 may be purchased from:
    Standard Reference Material Program
    National Institute of Standards and Technology
    Room 204, Building 202
    Gaithersburg, MD 20899-0001 USA

IRMM - Reference materials may be obtained from:
    Institute for Reference Measurements and Materials
    Commission of the European Communities-JRC
    B-2440 Geel, Belgium

CEA - CEA distributes stable isotopes through its daughter company:
    EUROISA-TOP
    Parc des Algorithmes (Bat. Homère),
    F-91190 St Aubin
    France
- For nuclear reference materials, see also:
    CETAMA
    CEA/DCC
    Centre d'Etudes Nucléaires de Fontenay aux Roses
    BP 6
    F 92265 Fontenay aux Roses
    France

NBL - Reference materials may be obtained from:
    U.S. Department of Energy
    New Brunswick Laboratory
    9800 S. Cass Ave.
    Argonne, Illinois 60439 USA