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Specifications
Source of Standards
Source of Standards
Wavelength Accuracy
The NIST 2034 Holmium Oxide solution is available from:
U.S. Department of Commerce
National Institute of Standards and Technology
Standard Reference Materials Program
Bldg. 202, Room 204
Gaithersburg
MD 20899
USA
Tel. (301) 975 6776
Photometric Accuracy
The NIST 930e standard is available from NIST, see above address.
Other Standards
All other standards can be prepared using the appropriate material
recommended in the EP or ASTM procedures.
Agilent Technologies Standards Kit
All liquid standards required by the EP or ASTM are available in snap-open
ampules from Agilent Technologies. These standards are easy to handle,
inexpensive and traceable. The OQ/PV chemical standards kit I (order
number 5063-6503) contains potassium dichromate, sodium nitrite, sodium
iodide and toluene in hexane. The OQ/PV chemical standards kit II (order
number 5063-6521) contains holmium oxide in perchloric acid.
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