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).
Med Vet International Thermometer Jar, J0396A, 3.25in x 1.33in, Each
Stores glass thermometers. Wide base to give greater stability and avoid tipping over.
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
SIGMA ALDRICH FINE CHEMICALS BIOSCIENCES ACCUSAFE BOTTLE THERM 35-200C
NC3822170 ACCUSAFE BOTTLE THERM 35-200C
Enterprise Technology Solutions Professional Antibacterial Liq
Antibacterial Liquid Hand Soap Light Scent 1 gal 2/Carton
Alkali Scientific Bi-directional Liquid Transfer
Our 5L high efficiency shaker flasks (C10422-AZB090A)are ideal for medium size scale up work They are inhigh efficiencyin in that a 5L flask has 230mm diameter footprint allowing for more of them to fit on a shaker platform The geometry of the flasks also allows for higher shaker speeds without damaging the cells Faster shaker speeds means better gas exchange higher growth rates and more yield per flask This product features pre-assembled tubing connectors and gas exchange filters allowing for the movement of liquid in and out of the Erlenmeyer flask with minimal risk of contamination Many customers have realized significant cost savings by switching to aseptic transfer systems 5L High Efficiency Erlenmeyer Flask 1 system per double wrapped sterile bag - 4 systems per case Flask made of USP grade VI virgin polycarbonate Untreated super smooth interior surface ideal for suspended cultures Attached bi-directional transfer cap Attached thermoplastic elastomer (TPE) external tra
Alkali Scientific Bi-directional Liquid Transfer
The 5L High Efficiency Erlenmeyer Flask comes with a Bi-directional Transfer Cap featuring a TPE Tube (50cm length 1/4in ID 3/8in OD) for seamless and precise liquid transfers The flask also includes a Vent Filter (0 22 m 24mm) to maintain a sterile environment crucial for sensitive samples Each pack contains 1 flask and each case contains 4 packs providing ample supply for laboratory needs This Erlenmeyer flask is designed to ensure high efficiency in various lab applications requiring a volume capacity of 5 liters The sterile nature of the flask eliminates contamination concerns safeguarding the integrity of your experiments 5L High Efficiency Erlenmeyer Flask 1 system per double wrapped sterile bag - 4 systems per case Flask made of USP grade VI virgin polycarbonate Untreated super smooth interior surface ideal for suspended cultures Attached bi-directional transfer cap Attached thermoplastic elastomer (TPE) external transfer tube No attachment hardware included tubing come
Med Vet International Thermometer with Grommet, J0813MD1, Each
Thermometer with Grommet, J0813MD1, Each
Cole-Parmer Digi-Sense Calibrated Liquid-In-Glass Thermometer; -10 to 70C, 76mm Immersion, Organic Liquid Fill
These thermometers are ideal for use in applications where a very precise accurate temperature measurement is required. Thermometers are individually calibrated to NIST standards at specific temperatures and supplied with an NIST report of calibration stating corrections to one-tenth the smallest division. Thermometers feature triangular anti-roll fitting, permanently fused markings, blue spirit liquid, white background glass; are also individually serial numbered. Include an NIST-traceable statement of accuracy and a triangular-style antiroll fitting.
Cole-Parmer Digi-Sense ASTM Like Liquid-In-Glass Thermometer; 15F / Low Softening Point, Total Immersion, 32 to 180F, 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.