When did they stop making mercury thermometers?
Those days have passed. Since 2001, 20 states have banned mercury “fever thermometers” for medical use, and regulations tighten every year. Many pharmacies now carry only sterile digital replacements or the less accurate ones with red glop in the bulb.
Which states have banned mercury thermometers?
As a result, a number of states have banned or limited the sale of mercury thermometers, including California, Oregon, Rhode Island, Maine, Maryland, Indiana, Minnesota, and New Hampshire.
Are mercury thermometers banned?
While many people probably have them in their medicine cabinets, or on their walls, the retail sale of mercury thermometers has been banned or restricted in at least 18 states, including Washington, with more such legislation pending, according to the Interstate Mercury Education and Reduction Clearinghouse.
Does Walmart sell mercury thermometers?
Equate Mercury-Free Glass Thermometer.
What is used in thermometers now instead of mercury?
Ethanol-filled thermometers are used in preference to mercury for meteorological measurements of minimum temperatures and can be used down to −70 °C (−94 °F). The physical limitation of the ability of a thermometer to measure low temperature is the freezing point of the liquid used.
Are mercury free thermometers accurate?
Non-mercury thermometers have scale divisions equal to mercury thermometers. Most range from 0.5° to 1° C. Accuracy limits for non-mercury thermometers below 150° C are also compatible with mercury thermometers; accuracy is typically ± 1° – 2° C.
Why did they stop selling mercury thermometers?
The reason: Mercury released into the environment from a broken thermometer is highly poisonous. So government and state agencies have mounted campaigns to end the use of thermometers that contain the liquid metal. Federal and state authorities have lobbied since 2002 for bans on medical mercury thermometers.
Are mercury thermometers more accurate than digital?
Both laboratory and clinical studies show that there is no significant difference in the average accuracy of the two types of thermometers, however there is a greater fluctuation of readings of temperature when using electronic thermometers.
What is the price of mercury thermometer?
Mercury Thermometer at Rs 75/piece | Clinical Mercury Thermometer | ID: 11540278248.
What filled thermometers before mercury?
Long before mercury filled thermometers, brandy was used to tell the temperature. Other interesting finds: 97% of US bills contain traces of cocaine.
What is the normal body temperature of a healthy person?
98.6°F
Normal body temperature varies by person, age, activity, and time of day. The average normal body temperature is generally accepted as 98.6°F (37°C). Some studies have shown that the “normal” body temperature can have a wide range, from 97°F (36.1°C) to 99°F (37.2°C).
What type of thermometer is the most accurate for adults?
What type of thermometer is most accurate? Digital oral and rectal thermometers are the most accurate. Rectal thermometers, while they may not be used widely for at-home use, are the better measure of core temperature.
How do you clean a mercury thermometer?
Sprinkle sulfur powder over the contaminated area and rub it gently all over the surface and into the cracks with a paper towel. Sulfur powder binds with mercury. Use a paper towel dampened with water followed by wiping with another damp paper towel to clean up the sulfur and mercury.
How much mercury in a thermometer?
The amount of mercury in a thermometer is about 3 grams. A mercury thermometer is used to measure the body temperature.
What is Mercury in glass thermometer?
Mercury-in-glass thermometer. It consists of a bulb containing mercury attached to a glass tube of narrow diameter; the volume of mercury in the tube is much less than the volume in the bulb. The volume of mercury changes slightly with temperature; the small change in volume drives the narrow mercury column a relatively long way up the tube.
What is a glass mercury thermometer?
Mercury-in-glass thermometer. It is a bulb containing Mercury attached to a glass tube of narrow diameter. The volume of mercury in the tube is much less than the volume in the bulb. The volume of mercury changes slightly with temperature. The small change in volume drives the narrow mercury column up the tube.