A basic mercury thermometer is a precisely crafted piece of tube-shaped glass enveloping a mercury-filled reservoir connected to an extremely thin channel, called the capillary bore, that provides a chamber the mercury from the reservoir can expand into.

2024年11月27日 · Mercury thermometers can be used to determine body, liquid, and vapor temperature. Mercury thermometers are used in households, laboratory experiments, and industrial applications. Common household uses of mercury thermometers include fever thermometers and oven, candy, and meat thermometers.

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2020年12月15日 · Mercury thermometers provide accurate temperature readings and can be used orally, rectally, or under the arm. They don’t require batteries.

2024年6月17日 · With the growing awareness of mercury exposure hazards, the shift towards mercury free thermometers in settings like homes, hospitals, and laboratories is becoming more prominent. These safer alternatives offer reliable and accurate temperature measurement while eliminating the risk of mercury exposure.

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There are several different kinds of mercury-in-glass thermometers available, including the “maximum thermometer,” a special sort of mercury thermometer that works by having a constriction in the neck near the bulb.

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.

2023年10月19日 · The main reason mercury is used in thermometers is because it has a higher coefficient of expansion than water. This means that changes in its volume with temperature are more noticeable. Additionally, mercury has a boiling point of 356.7 degrees Celsius, which is much higher than alcohol’s boiling point of 78.37 degrees Celsius.

ASTM mercury-filled Thermometers have strict manufacturing tolerances and assure high-quality temperature measurements. Accuracy is assured by the inspection and testing of samples from each production run. Each thermometer is supplied with a statement of compliance to ASTM E1 and E77 requirements.