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 Armored Thermometer Certified at 120°C for Dairies
Autoclave Maximum Registering Thermometers are for validating autoclaves by monitoring the highest temperature attained during a sterilization cycle. These thermometers operate on the same principle as thermometers designed to measure fevers: the highest temperature attained is recorded, and doesn’t recede until the thermometer is shaken down.
Enterprise Technology Solutions Iconex LLC Paper Rolls,Thermal,f/POS,3.11"x273',50/CT,White
Paper rolls offer top-quality thermal paper that works efficiently with your machine printhead. Great for point-of-sale applications, these high-quality rolls deliver crisp, clear black images. They are made to OEM specifications using only papers that have passed the rigorous, IBM testing process. They are manufactured sustainably, BPA-free and using forestry-certified paper and recycled cores. Use in calculators, gas station/pay-at-the-pump devices, cash registers and portable printers. The rolls are designed for use in Citizen CMB-230 Series, IDP-3210, LT380; Star Micronics SCP700; IBM 4610 and 4650.
Revvity Health Sciences Inc Ceramic Beads Pre-Filled 2 mL 96 Deep Well Plates, 0.1 mm (10/pk)
Ceramic Beads Pre-Filled 2 mL 96 Deep Well Plates, 0.1 mm (10/pk)
Enterprise Technology Solutions Mercury Floor Machines PRO-175
Pro-175-17 Floor Machine 1 5 Hp Motor 175 Rpm 16 Pad
Cole-Parmer Digi-Sense Armored Liquid-In-Glass Thermometer; 20 to 500F, 76mm Immersion, Organic Liquid Fill
Ideal for use in application where thermometers needs added protection from minor shocks. Nickel/plated brass armor shell protects these thermometers from accidental breakage during use and storage. The armor case has a screw cap with ring top and viewing window; the lower section that surrounds the bulb has small openings for circulation. Thermometers feature permanently fused markings, blue spirit liquid, white background glass; are also individually serial numbered. Include statement of accuracy and a triangular-style antiroll fitting.