when did they stop using mercury in thermometers
The National Institute of Standards and Technology (NIST), which is working with EPA on this effort, announced on February 2, 2011 that it will no longer calibrate mercury-in-glass thermometers for traceability purposes beginning on March 1, 2011Exit Exit EPA website.Nov 30, 2021
Do they still make mercury thermometers?
Mercury Thermometers Are Going Extinct.Feb 10, 2011
When did they stop using mercury in thermometers?
The National Institute of Standards and Technology (NIST), which is working with EPA on this effort, announced on February 2, 2011 that it will no longer calibrate mercury-in-glass thermometers for traceability purposes beginning on March 1, 2011Exit Exit EPA website.Nov 30, 2021
What has replaced mercury in thermometers?
There are several types of non-mercury-containing thermometers, including both liquid-in-glass and electronic digital thermometers. An example of an electronic digital thermometer is the platinum resistance thermometer. Others include the thermistor and the thermocouple.Nov 30, 2021
How do I know if my thermometer has mercury in it?
If the liquid in the thermometer bulb is any color other than silver, it is not a mercury thermometermercury thermometerThe mercury-in-glass or mercury thermometer was invented by physicist Daniel Gabriel Fahrenheit in Amsterdam (1714). 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.https://en.wikipedia.org › wiki › Mercury-in-glass_thermometerMercury-in-glass thermometer – Wikipedia. If the liquid in your thermometer bulb is silver, then the liquid might be: Mercury.May 24, 2022
Do they still use mercury in thermometers?
The oldest thermometers used are mercury in glass. Newer thermometers include non-mercury liquids in glass and digital and electronic devices that use sensors to measure temperature. Thermometers that check body temperature in the ear, across the forehead, or have a digital display do not contain mercury.
Why are mercury thermometers no longer used?
The reason: Mercury released into the environment from a broken thermometer is highly poisonous. Pure mercury and its compounds can cause neurological problems and other ailments in people exposed to them.Feb 25, 2011
When did they stop putting mercury in thermometers?
The National Institute of Standards and Technology (NIST), which is working with EPA on this effort, announced on February 2, 2011 that it will no longer calibrate mercury-in-glass thermometers for traceability purposes beginning on March 1, 2011Exit Exit EPA website.Nov 30, 2021
Was mercury thermometer banned?
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. Some local units of government across the country have issued bans as well, including Ann Arbor.Jan 30, 2002
Why did we stop using mercury thermometers?
There's no secret reason NIST (and partners like the Environmental Protection Agency and United Nations) have pushed scientists away from mercury. It's a neurotoxin—exposure can cause tremors, partial blindness, deafness, memory loss, and many, many other problems—and, if mercury does spill, it's very hard to clean up.Mar 1, 2011
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