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Topic: Mercury-in-glass thermometer

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Mercury-in-glass thermometer - Wikipedia, the free encyclopedia A mercury-in-glass thermometer is a thermometer consisting of mercury in a glass tube. Today mercury thermometers are still widely used in meteorology, however in other usage they are becoming increasingly rare, as mercury is highly and permanently toxic to the nervous system and many countries have banned them outright from medical use. In areas where the maximum temperature is not expected to rise above -38.83 °C (-37.89 °F) a thermometer containing a mercury-thallium alloy may be used. en.wikipedia.org /wiki/Mercury-in-glass_thermometer   (769 words)

FDA > CDRH > CFR Title 21 Database Search Thermometers shall be tested for accuracy against a known accurate standard thermometer upon installation and at least once a year thereafter, or more frequently if necessary, to ensure their accuracy. Thermometers and temperature-indicating devices shall be tested for accuracy against a known accurate standard thermometer upon installation and at least once a year thereafter, or more frequently if necessary, to ensure their accuracy. Thermometer shall be tested for accuracy against a known accurate standard thermometer upon installation and at least once a year thereafter, or more frequently if necessary, to ensure their accuracy. www.accessdata.fda.gov /scripts/cdrh/cfdocs/cfcfr/CFRSearch.cfm?CFRPart=113&showFR=1   (13032 words)

Glass mercury thermometer sales slowly drying up - 10/26/00 The mercury in thermometers is a heavy metal generally not that hazardous in the small amount inside a thermometer but difficult to clean up if the thermometer breaks. Consumers, especially parents with wiggly children who won't sit still for the time it takes for a mercury thermometer to register a final temperature, were switching to digital. Broken mercury thermometers result in about 18,000 calls a year to poison control centers. www.detnews.com /2000/health/0010/29/a10-139411.htm   (644 words)

Thermometer - Simple English Wikipedia In the past, the traditional thermometer was a mercury-in-glass thermometer. In the past it was a big problem, because mercury thermometers needed a long time to find the temperature. There are other kinds of medical thermometers: tympanic thermometers test the temperature of the tympan (the eardrum) with infrared; band thermometers test a person's temperature on the fron of their head. simple.wikipedia.org /wiki/Thermometer   (324 words)

LABORATORIES NUMBER 5 AND 6 Compute the thermocouple temperatures from the tables, and compute the % difference between the thermocouple temperature and the mercury-in-glass thermometer temp. As you heat the water and measure the Hg in glass thermometer and the thermocouple output, you are also to make two measurements using the IR thermometer. is the density of mercury (kg/m3), H is the height of the column in meters and g is the acceleration of gravity (9.8 m/s2). userwww.sfsu.edu /~ozer/EXP5B-300N.htm   (3137 words)

MSN Encarta - Print Preview - Thermometer A mercury-in-glass clinical thermometer, for example, is a maximum-reading instrument in which a trap in the capillary tube between the bulb and the bottom of the capillary permits the mercury to expand with increasing temperature, but prevents it from flowing back unless it is forced back by vigorous shaking. Thermometers may also be designed to register the maximum or minimum temperature attained. Maximum temperatures reached during the operation of tools and machines may also be estimated by special paint patches that change color when certain temperatures are reached. encarta.msn.com /text_761574061___3/Thermometer.html   (111 words)

UM Physics Demonstration This thermometer is kept in a brass case in the storage room. There are several thermometers with different temperature ranges including one which was once calibrated to 1/100 of a degree. www.physics.lsa.umich.edu /demolab/demo.asp?id=152   (31 words)

lacfpt214.html The installation of the standard thermometer in the retort next to the MIG thermometer to be checked and the use of a circulating laboratory oil bath are also acceptable methods used to check MIG thermometers for accuracy. The MIG thermometer is the reference instrument for all temperature readings, including vent temperatures, come-up temperatures and process temperature during the processing of lacf(s). One way that firms using steam for thermal processing can check their MIG thermometers is to use a cross made of 3/4 inch pipe for holding the thermometers with 1/16 inch holes drilled in the fittings to provide for a flow of steam past the thermometer bulb. www.fda.gov /ora/inspect_ref/igs/lacfpt2/lacfpt214.html   (817 words)

Silhouettes on Glass from the Glass Encyclopedia The glass was either flat or convex, and the advertising promotion pictures often had a calendar or a thermometer attached, as well as the company name and contact details. The picture hand painted or screen printed onto the reverse side of the glass was usually black and in the form of a silhouette, most often of a lady in crinoline dress and a man in top hat or period costume. There are also hundreds of original catalog pictures and photographs of Bagley Glass which have not previously been available. www.glassencyclopedia.com /silhouettesonglass.html   (627 words)

05-22-1997 HOME HEALTH OBSERVATION GUIDE Mercury and glass thermometers are modest in cost and are very accurate. As with the mercury thermometers, it is better to take a rectal temperature on infants, toddlers or adults who are not able to follow simple instructions like, "Keep the thermometer under your tongue," "Keep your mouth closed," and "Don't bite on the thermometer." Even though plastic, the thermometer can be damaged if chewed on. The thermometer does not have to be inserted very far into the rectum; usually 1/2 to 1 inch is enough. www.p2pays.org /ref/06/05755   (3470 words)

MERCURY-IN-GLASS THERMOMETER AS A CAUSE OF It is recommended that the ban on the use of rectal thermometers be applied in other hospitals in order to avoid rectal perforation caused by these thermometers in neonates. Since no other rectal instrumentation was performed except the insertion of a rectal thermometer, it is highly likely that the rectal perforations were caused by the thermometer insertion. For the assessment of body temperature, axillary thermometers should be used routinely. www.kfshrc.edu.sa /annals/211_212/00-042.htm   (1389 words)

Mercury Glass mirrors were invented with the aid of mercury amalgams to produce a reflecting surface, protected by the glass. The density of mercury decreases as the temperature increases, because of the thermal expansion of mercury. The mercury evaporates at the cathode spot and condenses on the cool walls of the envelope, controlling the pressure of the mercury, which should be in the neighborhood of 1 mmHg. www.du.edu /~jcalvert/phys/mercury.htm   (10667 words)

ChineseSource.com ..Chinese Products and Services Mercury-in-glass thermometers' measuring range is between£­30¡«£«500¡æ, and organic liquid-in-glass thermometers' range is between£­100¡«+200¡æ coding with red or blue color. Mercury thermometers' measuring range is between£­30¡«£«500¡æ, and organic liquid thermometers' range is £­100¡«+200¡æ coding with red or blue color. According to the usage, they can also be sorted as two types of mercury and organic liquid. www.chinesesource.com /company.cfm?companyid=7376   (803 words)

Mercury Swap your old mercury glass thermometer for a non-mercury Geratherm thermometer that works just the same but won’t contaminate your home if it is broken. Mercury "bioaccumulates" in the food chain as predators concentrate it faster than they eliminate it. Acute mercury poisoning, especially ingestion of mercury as organic methylmercury, can damage the brain, kidneys and liver, or cause death. www.mendorecycle.org /mercury.htm   (984 words)

Ask the Expert - Family Practice - Mercy Medical Center - Cedar Rapids, Iowa This is not due to safety reasons for the child, as the mercury in the standard thermometers is completely sealed and is not absorbed into the body. For environmental reasons, however, it would make more sense to use a mercury-free thermometer to avoid adding more mercury to our landfills when the themometers are thrown away. A: Assuming there is no difference in accuracy between the two types of thermometers, I see no reason not to switch to the mercury-free type. www.mercycare.org /patients/family_practice.aspx?QuestionID=1047   (148 words)

What Goes Into Making a Good High Chair, Nursery Monitor, and Thermometer Positioning the thermometer under the tongue is one of the oldest and most familiar methods of temperature-taking. Electronic/infrared underarm thermometers have been used in neonatal and pediatric intensive care units in hospitals around the world and are now available for home use. The pacifier thermometer is a valid, noninvasive oral temperature taker for children (newborn to age five) who will accept pacifiers. www.babyshopmagazine.com /past/bss992.htm   (3073 words)

clhgp.html MERCURY IS A CUMULATIVE POISON THAT CONCENTRATES IN THE BRAIN, KIDNEYS AND LIVER. Explanation Of Carcinogenicity: MERCURY IS NOT LISTED AS A CARCINOGEN BY THE NTP, IARC OR OSHA. Unusual Fire/Explosion Hazard: MERCURY IS NOT COMBUSTIBLE, FLAMMABLE OR EXPLOSIVE, BUT WILL EVAPORATE WHEN HEATED CREATING TOXIC FUMES WHICH ARE BOTH ODORLESS AND COLORLESS. www.kauaicc.hawaii.edu /msds/files/clh/clhgp.html   (813 words)

Temperature Taking / Midiendo La Temperatura, Cincinnati Children's Hospital Medical Center An oral temperature is taken with the thermometer in the mouth. Remove the thermometer and wipe it with a tissue or discard the rectal shield. This is for children who can hold the thermometer under the tongue with the lips closed and not bite the thermometer. www.cincinnatichildrens.org /health/info/newborn/home/temperature.htm   (625 words)

Fever Some communities now offer free non-mercury thermometers to people who turn in their old mercury thermometers, so that they can collect the mercury and dispose of it safely. The inexpensive digital thermometers sold in drugstores can be less accurate than mercury thermometers, although the digital thermometers we use in our offices are usually more accurate (and harder to break, too). Also, mercury thermometers are made of glass, and broken glass is also hazardous. www.drreddy.com /fever.html   (2069 words)

Module 11 A comparison between a mercury-in-glass (MIG) thermometer and the continuous recording thermometer is made daily. temperature check, the recording thermometer was reading lower than the MIG (Mercury in Glass) thermometer. This condition is acceptable as long as the two instruments are as close as possible, but the temperature recording device should not be higher than the MIG thermometer. www.cce.cornell.edu /seafood/module11/11Mod09.html   (183 words)

Medical and Clinical Temperature Measurements and Uses of Temperature Sensors The fever thermometer is still in abundant supply and still the second most frequent test used (after a hand on the forehead) to indicate the presence of an infection in the human body by noting an elevation in body temperature. Human and animal body temperatures are so important to the well being of warm blooded animals, that the nominal body temperature indicated by a fever thermometer or similar device, is used as one of the vital signs routinely monitored as an indicator of a state of a person's or animal's health. Ever since one's first experience with a fever thermometer, almost everyone has known what it means "to have a temperature". www.temperatures.com /medical.html   (519 words)

Amazon.com: Vicks Digital Thermometer: Health & Personal Care Out of six digital thermometers I have had in my life, four were completely inaccurate right out of the box (by a few degrees!), the fifth one failed completely after three months of intermittent use, and the sixth one's battery died just when I needed it. Because the thermometer can be used orally, rectally, or under the arm, five disposable probe covers are included to help prevent contamination between family members (more covers can be purchased in pharmacies). This Vicks digital thermometer read three degrees too low (which would indicate on the thermometer's display a normal 98.6, when you or your child actually had a temp of 101.6!!). www.amazon.com /exec/obidos/tg/detail/-/B0000W5BS4?v=glance   (724 words)

THERMOMETER - Definition {Register thermometer}, or {Self-registering thermometer}, a thermometer that registers the maximum and minimum of temperature occurring in the interval of time between two consecutive settings of the instrument. {Metallic thermometer}, a form of thermometer indicating changes of temperature by the expansion or contraction of rods or strips of metal. A common form contains a bit of steel wire to be pushed before the column and left at the point of maximum temperature, or a slide of enamel, which is drawn back by the liquid, and left within it at the point of minimum temperature. www.hyperdictionary.com /dictionary/thermometer   (205 words)

www.hdtvsound.com :: Mercury Free Glass Oral Thermometer It looks like the old fashioned mercury thermometers altho it is a bit wider and a tiny bit awkward to keep in your mouth. The shipping carton in which I received the thermometer was quite hot when it came in the mail and the liquid silver had risen to the top of the tube, past 108F. Over a period of days of snapping the thermometer with my wrists, I finally lowered the column to 97.2F, but couldn't budge it after that. www.hdtvsound.com /B0006GBEKS/Mercury_Free_Glass_Oral_Thermometer.html   (358 words)

Thermometer Best for Measuring Child's Fever "But if your child is running a temperature with other symptoms, particularly those children under two, take their temperature using a regular glass mercury thermometer. However, the most reliable and accurate way to measure a child's temperature - especially for children two years and younger -- is with the old stand-by - a glass mercury thermometer used rectally or orally. And, according to a study in the September Annals of Emergency Medicine, a parent's judgment of the severity of the fever is just as reliable as expensive over-the-counter thermometers used in the ear. www.kidsource.com /kidsource/content2/news2/thermometer9_3_96.html   (462 words)

DialTempTM K-79 Series : DialTemp Thin Stem Pocket Thermometer Models K-79-(*) With head and stem of stainless steel and plastic crystal and no mercury or glass, this thermometer is virtually unbreakable. This handy little Pocket Thermometer is great for spot checking temperatures accurately and quickly. DialTempTM K-79 Series : DialTemp Thin Stem Pocket Thermometer Models K-79-(*) www.omega.com /ppt/pptsc.asp?ref=K-79_POCKET_THERMOM   (216 words)

Ask an Expert: Taking an infant`s rectal temperature The problem with any glass thermometer, mercury or other, is that they remain very easy to break. The easier question regards the Mercury Free products, which include all electronic thermometers and the one that you mentioned. Lately most parents have been opting for tympanic (ear) thermometer because of ease and speed of use. www.netwellness.org /question.cfm/32890.htm   (302 words)

Mercury Free Glass Basal Thermometer - Track your Basal Temperature to Aid in Conception The Fairhaven Health Glass Basal Thermometer is an ultra-accurate, mercury free, and non-toxic alternative to mercury thermometers. This Glass Basal Thermometer allows a woman to determine her body temperature for basal body temperature (BBT) charting purposes. A Basal Thermometer is vital purchase if you are planning on charting your basal body temperature (BBT) in order to find out when your body is going to ovulate. www.babyhopes.com /glass-basal-thermometer.html   (547 words)

Ci399 project shake the mercury down to the bulb by snapping your wrist while holding the opposite end of the thermometer Measure body temperatures and compare the readings to the normal temperature ranges using Fahrenheit and Centigrade scales, glass and tympanic thermometers. Demonstrate the use of the various thermometers: glass, tympanic and electronic www.mste.uiuc.edu /courses/ci399sp00/students/hannigan   (481 words)

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