Manual Thermometers
Mercury, non-mercury (liquid in glass), or bimetallic thermometers with analog displays, for general and application-specific use, with various temperature-range capacities and accuracies; may be traceable or certified to international standards.
In 1714, the mercury-in-glass thermometer was invented in Europe by physicist Daniel Gabriel Fahrenheit. Typically, the mercury is contained in a reservoir that opens to narrow glass tube. The distance that the mercury flows into the tube is dependent on the temperature to which the thermometer is subjected. The space above the mercury may be filled with air or an inert gas, or it may be a partial vacuum.
Thermometers are calibrated by exposing them to a known temperature and then marking the height of the mercury at that temperature. For example, one might calibrate to the freezing temperature of water (0°C or 32°F) by placing the thermometer in a mixture of ice and water. Then the thermometer could be submerged in boiling water to determine the point where the water changes from a liquid to a vapor (100°C or 212°F).
Mercury thermometers are still considered to be some of the most accurate temperature indicators. They can be used for a wide range of temperatures, from -37°C to 356°C (-35°F to 673°F). Modifications such as adding an inert gas above the mercury or replacing the glass with fused quartz can extend the upper temperature limit to as high as 800°C (1,470°F).
Mercury cannot be used below -38.83°C (-37.89°F), the temperature at which it becomes a solid. Moreover, nitrogen in the thermometer can flow down into the column and become trapped if the mercury solidifies, which makes the thermometer unusable. Use a thermometer that contains a mercury-thallium alloy for measuring lower meteorological temperatures – it will remain liquid to -61.1°C (-78.0°F).
Thermco Products Inc Special application Non-Hg, 20/100C, .5C div, 76mm imm, 305mm
Precision spirit filled thermometer. The ACC711S thermometer was designed to be used in water baths with it's 76mm immersion. At the 76mm immersion there is an enlargement to assure of proper immersion Accurate to N.I.S.T. tolerances. Eligible for N.I.S.T. certification.
Cole-Parmer Digi-Sense Incubator Verification Thermometer; 15 to 50C, PFA Coated
Accurately monitor temperatures in freezers, refrigerators, incubators, ovens, and other environments where stability is required. These thermometers are supplied in a media-filled unbreakable plastic bottle and can be removed from the bottle for recalibration. Use the magnetic attachment with pressure-sensitive backing to attach the bottle to a metal wall or door. Thermometers feature permanently fused markings, blue spirit liquid, white background glass; are also individually serial numbered. Include an statement of accuracy and a triangular-style antiroll fitting.
Supply Solutions Thermco - 400Mm Mercury Thermometer Astm. Immersion Depth: Total; Overall Length: 400Mm; Temp Range: 30 To 180F
These liquid filled glass thermometers are manufactured to very rigid specifications and are guaranteed to meet accuracy requirements set forth by ASTM. The suffix portion of the catalog number is the ASTM designation for that particular thermometer. Factory calibration certificates are available for an additional charge. Please specify calibration points at time of order.; Immersion Depth: Total; Overall Length: 400mm; Temp Range: 30 to 180F; Length (MM): 397; Immersion (MM): Total
Grainger Liquid Filled Food Service Thermometer
The Grainger 14F306 is a Westward brand 1/4-inch drive socket set. This 108-piece set includes sizes ranging from 4mm to 14mm as well as 1/4, 5/16, 3/8, and 7/16-inch sockets. The chrome vanadium steel sockets have a matte finish and come packed inside a lightweight carrying case for convenient storage and portability. This socket set is designed for use with hand tools and is ideal for automotive and machinery applications that require metric and SAE socket sizes.