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Clinical Chemistry 20: 670-672, 1974;
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Clinical Chemistry, Vol 20, 670-672, Copyright © 1974 by the American Association for Clinical Chemistry

Standard Reference Materials 933 and 934: The National Bureau of Standards' Precision Thermometers for the Clinical Laboratory

B W. Mangum 1

1 National Bureau of Standards, Washington, D. C. 20234.

Because many facets of clinical laboratory work, such as enzymatic reactions, pH measurements, and blood-gas analysis, are highly sensitive to temperature, there is a need to measure temperature accurately and closely control it. To help satisfy these needs and to aid in getting a usable temperature scale into the clinical laboratory, the National Bureau of Standards has developed SRM 933 and SRM 934. These precision thermometers are calibrated at 0, 25, 30, and 37 °C. Their value to the clinical laboratory is described.

Submitted on March 11, 1974
Accepted on April 5, 1974






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Copyright © 1974 by the American Association for Clinical Chemistry.