Talk about the advantages and disadvantages of mercury thermometers

My elders, and they at that time, most of them in the use of mercury thermometer, it is a kind of expansion type thermometer, use it to measure temperature, not only is simple and intuitive, but also can avoid external remote transmission error of the thermometer. Below we to say the advantages and disadvantages of mercury thermometer, mercury thermometer advantages: the most common form of thermometer is the mercury thermometer, it can keep up with the mercury in the body temperature of the original position, facilitate users observed at any time. Because the structure of glass is dense, mercury's performance is very stable, so the mercury thermometer is accurate and value for the characteristics of high stability, and the advantages of low cost, no external power supply, trusted by the people, especially the medical workers. The mercury thermometer faults: mercury thermometer obvious defects, easily broken, mercury pollution may exist; This is a kind of old thermometer, experts believe that the degree of danger of mercury thermometer is very large, than people think. People put it in the mouth temperature, for example, one thousand thermometer is broken, mercury is likely to flow into the mouth, and even be swallowed. The mercury as soon as possible in order to row away, at that time the patient is, first and foremost, cannot have a meal, want to hurry up to eat some crude fiber vegetables; If the skin is broken mercury thermometer cut, is likely to cause infection, cause skin irritation; And if the mercury into the man's blood, can lead to mercury poisoning. The price is cheaper, up more than ten dollars, but mercury itself is dangerous, so it's best to avoid to acute critically ill patients, the children and the elderly to use. Measurement time is longer, reading more trouble, etc. Mercury thermometers are gradually being phased out.