A-A-54520
12 November 1991
COMMERCIAL ITEM DESCRIPTION
THERMOMETER, SELF-INDICATING, BIMETALLIC
The General Services Administration has authorized the use of this Commercial Item Description as a replacement for Military Specification MIL-T-3462D which is cancelled.
This Commercial Item Description covers a pocket size dial type thermometer, for use in liquid temperature measurements, inspection of food products, and in determining the temperature of shell eggs.
Salient Characteristics:
Shall be a self-indicating dial type bimetallic thermometer with a 0 to 220 degrees Fahrenheit (F) scale range and increments of 2 degrees (F). The nominal overall length of the thermometer assembly shall be 5-1/2 inches. The thermometer shall be supplied with a carrying case that includes a pocket clip.
Shall be designed to indicate temperatures by the rotation action of a bimetallic element which turns a staff that is connected to a pointer. A calibration nut shall provide a means for recalibrating without disassembling the thermometer.
Shall be supplied ready for use by being preset to provide thermometer readings that have a +/- 2 degree (F) accuracy. The thermometer shall be tested for accuracy in accordance with the testing procedure indicated in the Quality Assurance Provisions of this document.
Shall be designed to respond rapidly to temperature changes. The time for a thermometer reading to rise from 50 degrees to 180 degrees (F) shall not exceed 10 seconds, after the thermometer is immersed in a 212 degree (F) liquid bath after being transferred from a 32 degree (F) liquid bath. The thermometer shall be tested for speed of response in accordance with the testing procedure indicated in the Quality Assurance Provisions of this document.
DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited.
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