Replacing mercury thermometers with digital thermometers the purpose of this factsheet is to encourage healthcare administrators to replace mercury fever thermometers with digital thermometers. A mercury thermometer consists of liquid mercury in a glass bulb attached to a thin, enclosed tube. In a thermometer, a glass bulb attached to a glass capillary tube is filled with. This handy dual scale mercury thermometer is a necessity for each home, office, clinic and hospital. There are serious health risks if a glass mercury thermometer breaks. The thermometer is used orally and contains galinsta. Oral, rectal, and axillary using a glass thermometer the body temperature of infants and children can change quickly. It has an inbuilt mercuryinglass construction and dual reading in farenheightcelsius. Replacing mercury thermometers with digital thermometers.
The mercury thermometer is a classic design for temperature measurement still used by many families. Clinical thermometer is used to measure the human body temperature maximum and minimum thermometer is used to measure the temperature of atmosphere. Mercury free they contain blue organic liquid against. Thermcos precision liquid in glass thermometers are manufactured with the finest glass manufactured under iso2001 guidelines.
A mercuryinglass thermometer, also known as a mercury thermometer, was invented by german physicist daniel gabriel fahrenheit in 1724 and is a thermometer consisting of mercury in a. Digital thermometer is as accurate as mercury in glass. I still use my digital protectors because they fit and it cuts down on the washing of the unit. Userfriendly guidance on the replacement of mercury thermometers. Never put a broken mercury thermometer in the trash, and keep your children away from the contaminated area. Geratherm thermometer, oral, mercuryfree, 1 thermometer. Happinter 1pcs triangular glass thermometer for adult or baby, armpit and oral thermometers for fever test. Buy mercury free oral thermometer online at low prices in. I decided to try this geratherm mercuryfree oral glass thermometer while looking online for some temperature taking device that had at least some degree of accuracy. In a mercury thermometer, a glass tube is filled with mercury and a standard temperature scale is marked on the tube. Accurate body temperature readings can make a difference in treatment decisions. Pdf the thermometerfrom the feeling to the instrument. Pdf is there significant difference between digital and. Since the properties of fluids, and in particular, mercury are well known, the only limitation to.
Mercury in glass thermometer safety data sheet effective. Easy and accurate reading of the body temperature can be made with these mercury filled thermometers. If you have a mercury thermometer, replace it with a digital thermometer. The history of temperature measurement, glass tube thermometers, bimetal thermometers, thermistors, resistance temperature detector, temperature conversion worksheet. Mercury is a persistent, bioaccumulative, toxic material that can harm the brain, heart, kidneys, lungs, and immune system of people of all ages.
Mercury thermometer definition of mercury thermometer by. Glass mercury thermometers are no longer recommended and can be dangerous. There are two kinds of glass thermometers, one with mercury and one without mercury. The uses of mercury in glass thermometers sciencing. Monitor mercuryfree glass thermometer large screen temperature measurement.
Geratherm mercuryfree oral thermometer at walgreens. No matter what youre looking for or where you are in the world, our global marketplace of sellers can help you. This screen also shelters the thermometer from precipitation while allowing the free circulation of air around it. The mercuryfree geratherm thermometer is an environmentally friendly, easytoread thermometer that provides clinical accuracy in a display that can be changed to read in degrees fahrenheit or celsius. Mercuryfree or bluespirit thermometers eliminate safety concerns related to mercury and are available in standard, certified and nisttraceable models.
Pdf the thermometer, as we know it today, is the result of a long trial and error process. Mercuryinglass thermometer for measurement of room temperature. If mercury is tracked around, the small amount of mercury spilled can turn into a large cleanup. Daniel fahrenheits mercuryinglass thermometer was far more reliable and accurate than any that had existed before, and the mercury thermometers in use today are made in the way fahrenheit devised. Mercurycontaining thermostats have 3 grams, or about an 18 of a teaspoon, of mercury in them. Mercury vapors and oxides generated during fires involving the product are toxic. Glass thermometers can break and cause the person injury, and some contain mercury, which is poisonous. The strange shape takes some getting used to but it works great so far. Mercury is toxic if inhaled or if the liquid touches the skin. Thermometer ind mercury whiteback 10360 thermometer ind mercury whiteback 1050 thermometer mercury whiteback 5105 bss thermometer mercury whiteback 0. Mercury is stable it does not react in air and water, does not expand upon solidification and therefore will not break the glass tube of the thermometer. With changes in temperature, the mercury expands and contracts, and the temperature can be read from the scale. Etsy is the home to thousands of handmade, vintage, and oneofakind products and gifts related to your search. Mercury in glass thermometer safety data sheet effective date.
The temperature t indicated by the thermometer is the mercury temperature which will only equal t f under equilibrium conditions. The cylindrical bulb of a typical laboratory thermometer is about 3 mm in diameter and 12 mm long. Mercury is bad for your health, as well as for the water, wildlife, and waste systems on earth. Liquid in glass thermometer principle the liquid in glass thermometer, is the most commonly used device to measure temperature and it is inexpensive to make and easy to use. The mercuryinglass thermometer was the very first, invented by daniel gabriel fahrenheit in 1714. Like all temperature measuring devices, a liquidinglass.
Although currently there are digital thermometers this form of temperature measurement is still very much in demand, in addition to being very simple to use. Coated thermometers are just as accurate as uncoated thermometers, but are not recommended for timed tests as the coating can slow reaction time. A thermometer is a device that measures temperature or a temperature gradient. Mercury free oral thermometer hopkins medical products. This document was developed by the environmental protection agency epa and the national institute of standards and technology nist with assistance from battelle memorial institute under epa contract epw04021. If your child becomes ill or is going to have surgery, the doctor will need to know the temperature. Media in category mercury inglass thermometers the following 14 files are in this category, out of 14 total. Buy mercury free oral thermometer online at low price in india on. How to take an oral temperature step by step instructions. Liquidinglass thermometers are pervasive throughout industry. Mercuryinglass thermometer franks hospital workshop. A certificate of accuracy is included with each thermometer. However, in the unlikely event that your thermometer arrives broken, please send a photograph of the thermometer and the original packaging to email protected and we will provide a full refund or free replacement. Download 2,262 mercury glass thermometer stock photos for free or amazingly low rates.
Reading a mercury thermometer is easy but require a bit of practice and skill. Choose from our selection of mercury free thermometers, including handheld glass thermometers, heavy duty handheld glass thermometers, and more. You may also replace it with a glass thermometer having alcohol or galinstan instead of mercury in it. A mercuryinglass thermometer, also known as a mercury thermometer. Find great deals on ebay for mercury thermometer and vintage mercury thermometer. Mercury thermometer, buy mercury thermometers, clinical. A wide variety of mercury glass rectal thermometer options are available to you, there are 207 suppliers who sells mercury glass rectal thermometer on, mainly located in asia. Mercuryinglass thermometer 1 mercuryinglass thermometer closeup of a maximum thermometer. The liquid in glass thermometer has a glass bulb attached to a sealed glass tube also called the stem or capillary tube. The thermometer the solid in question is a mercury in glass thermometer that is immersed in a liquid.
The mercuryinglass or mercury thermometer was invented by physicist daniel gabriel. Mercury thermometers are not returnable this item is nonreturnable due to it being a health or personal care product. Pfa safety coating keeps thermometer liquid and glass encapsulated in the event of breakage. Medical oral thermometer for fever, body temperature fast. Pdf diagnostic accuracy of digital thermometer compared to. Kitchz mercuryfree dual scale classic traditional glass accuracy thermometer for home. If your mercury thermometer breaks, do not touch the thermometer or the.
Download and print out this handy pdf guide both printed and downloadable instructions come with each order. Mercury glass thermometer stock photos download 2,262. An enlargement at the top of the capillary into which the liquid can flow if the thermometer temperature exceeds the scale limit. Mercury in thermometer it has a boiling point of 674f 356.
Some of the worksheets below are free thermometer worksheets reading a thermometer in degrees fahrenheit, temperature measurement. The mercuryinglass or mercury thermometer was invented by physicist daniel gabriel fahrenheit in amsterdam 1714. Thermometers have a blue liquid against a white background for ease of reading each thermometer is. Mercury thermometers have been around for quite some time. We are closely monitoring the changing situation with the covid19 virus outbreak. Alcohol in glass thermometer spirit thermometer is an alternative to the mercury. The safetycoated thermometers protect against breakage and contain the liquid and glass inside the coating for safety and easy disposal. A childs temperature can also show if an infection is responding to medicine the child may be taking. Liquid in glass thermometer principle instrumentation tools. Glass thermometers were once common, but now various types of digital thermometers are more prevalent. How to read a mercury thermometer, how to read a glass. The delicate glass has a high risk for breaking, and the environmental protection agency recommends discarding these devices at recycling centers certified to accept mercury waste 6 7. The top countries of supplier is china, from which the percentage of mercury glass rectal thermometer supply is.