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 ASTM NM THERM FC -20-150C
ASTM S1C thermometer (Blue spirit) certified at the ASTM recommended temperatures and calibrated against N.I.S.T. standards. A N.I.S.T. traceable document is completed in the Thermco ISO17025/ILAC accedited laboratory.
Chemglass Life Sciences Thermometer, Non-Mercury, 10/30 Joint, 76mm Immersion, -10°C to 250°C
Thermometer, Non-Mercury, 10/30 Joint, 76mm Immersion, -10¿C to 250¿C. Thermometer is mineral spirit filled to eliminate workplace and environmental hazards associated with mercury. Thermometer has a white back, a 6 to 7mm outer diameter, and a standard taper 10/30 inner ground joint. All ranges have 1¿ subdivisions. Immersion is measured from the bottom of the joint to the bottom of the mercury bulb.
Chemglass Life Sciences Thermometer, Non-Mercury, 10/30 Joint, 51mm Immersion, -20°C to 150°C
Thermometer, Non-Mercury, 10/30 Joint, 51mm Immersion, -20¿C to 150¿C. Thermometer is mineral spirit filled to eliminate workplace and environmental hazards associated with mercury. Thermometer has a white back, a 6 to 7mm outer diameter, and a standard taper 10/30 inner ground joint. All ranges have 1¿ subdivisions. Immersion is measured from the bottom of the joint to the bottom of the mercury bulb.
Chemglass Life Sciences Thermometer, Non-Mercury, 10/30 Joint, 100mm Immersion, -10°C to 250°C
Thermometer, Non-Mercury, 10/30 Joint, 100mm Immersion, -10¿C to 250¿C. Thermometer is mineral spirit filled to eliminate workplace and environmental hazards associated with mercury. Thermometer has a white back, a 6 to 7mm outer diameter, and a standard taper 10/30 inner ground joint. All ranges have 1¿ subdivisions. Immersion is measured from the bottom of the joint to the bottom of the mercury bulb.
Research Products International Corp Thermometer, 2 Bottle Probes
High accuracy dual channel thermometers feature 0.01° high resolution with accuracy of ± 0.30°C. Individual channels provide simultaneous monitoring of temperatures in separate locations. Display exact time and date when a min/max reading occurred and alarm sounded. Min/Max temperatures are programmable in 0.1°C increments over entire range of -50° up to +70°C. Temperature buffered solution probes contain a non-hazardous glycol mixture that eliminates rapid temperature changes when opening refrigerator or freezer door.
Available with one miniature size sensor that is chemical resistance and waterproof for use in water baths, incubators or dry block heaters. Supplied with Traceable Calibration Certificate (NIST), stand, mounting strips and battery.
Cole-Parmer Digi-Sense ASTM Like Liquid-In-Glass Thermometer; 9C / Low-Pensky-Martens, 57mm Immersion, -5 to 110C, Organic Liquid Fill
These thermometers are precision manufactured to conform to ASTM E-1 specifications except for not being mercury filled. Designed for use in quality control laboratories or when mercury filled thermometers can not be used but where ASTM standards are still needed. ASTM established thermometer standards suited for special applications, and assigned an ASTM number according to each specification. Thermometers feature permanently fused markings, blue spirit liquid, white background glass; are also individually serial numbered.
Revvity Health Sciences Inc Ceramic Beads Pre-Filled 2 mL 96 Deep Well Plates, 1.4 mm (10/pk)
Ceramic Beads Pre-Filled 2 mL 96 Deep Well Plates, 1.4 mm (10/pk)
Med Vet International Dynarex Pre-Filled Saline Flush Syringe, 5mL, 480/Case
Dynarex Pre-Filled Saline Flush Syringes are convenient, integrated needle-free systems designed to safely and efficiently flush compatible intravenous administration sets. These sterile, disposable syringes come pre-filled to reduce the risk of cross-contamination and minimize syringe-generated blood reflux. Clearly marked with graduations for accurate dosing, the syringes feature an easy screw-tip cap to minimize the risk of microbial contamination. Dynarex Pre-Filled Saline Flush Syringes are high-quality integrated needle-free systems designed to effectively maintain the patency of indwelling intravenous access devices. These sterile Syringes come pre-filled for time-saving convenience, and to help reduce the risk of cross-contamination and syringe-generated blood reflux.
Cole-Parmer Ashcroft A960AF6 Adjustable Angle Glass Thermometer, 6" Stem; 30/300 F
FEATURES
- Mercury free blue liquid in glass with magnifying lens for easy readability
- Molded Valox - V-shaped black case for ranges up to and including 300F
- Die cast black aluminum V-shaped case for ranges above 300F
- Glass front excludes dust and dirt
- White aluminum scale with bold black graduations and figures
- Accuracy is 0.1% of full scale
- Easy adjustment permits case and stem to be rotated 360
- 9" scale is standard
- 1-1/4" - 18" NEF swivel nut