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Aging Changes in Clinical Thermometers
Author(s) -
LIBERATORE LAURENCE C.,
WILSON RAYMOND E.
Publication year - 1952
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1952.tb13102.x
Subject(s) - thermometer , materials science , medicine , thermodynamics , physics
In order to decrease the manufacturing time required to produce satisfactory clinical thermometers, heat‐treatment schedules have been developed to replace the aging period required to insure that the volumes of the thermometer bulbs will not change appreciably after the thermometers are placed in use. Two methods of heat treatment are reported, together with the results of a determination of the changes in the bulb volumes over a period of approximately 6 months after heat‐treating. Thermometers which had been heat‐treated showed average changes in reading of 0.03°F. or less, while the thermometers which had received no heat‐treatment changed by the equivalent of as much as 0.10°F.