Audit of VSMOW distributed by the United States National Institute of Standards and Technology

December 31, 1995

Bright-orange floating matter (possibly algae) has been observed in the United States supply of some ampoules and in one of two 10-L primary glass storage flasks of the isotopic reference water VSMOW (Vienna Standard Mean Ocean Water). Within experimental error, ampoules with and without this orange matter are identical in stable hydrogen and oxygen isotopic composition. Thus, the North American supply of VSMOW has not been altered in isotopic abundance and remains fully functional as a primary isotopic reference material.

Publication Year	1995
Title	Audit of VSMOW distributed by the United States National Institute of Standards and Technology
Authors	Jessica A. Hopple, Graham D. Foster
Publication Type	Conference Paper
Index ID	70205824
Record Source	USGS Publications Warehouse
USGS Organization	New Jersey Water Science Center

Audit of VSMOW distributed by the United States National Institute of Standards and Technology

Hydrologist

Hydrologist

New Jersey Water Science Center

U.S. Geological Survey

U.S. Department of the Interior

Audit of VSMOW distributed by the United States National Institute of Standards and Technology

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