Mercury thermometer life 5 years the countdown, there is no perfect substitute

Now more and more families start to use thermometer, especially families with infants. Bottle temperature measurement, temperature or temperature, are very common. But for a common glass mercury thermometer, there have been three hundred and sixty years of history, it has to go to the end of the life. ( Graph: mercury thermometer life into the countdown for five years) Mercury thermometer life only 5 years due in October 2013 adopted the convention on minamata, since 2020, more than 50 states, including China, will ban the production and import and export of mercury ( The mercury) Products, such as thermometer, blood pressure, batteries, fluorescent lamps and other products, so from now, the traditional mercury thermometer in the present moment less than 5 years of the last years. As a medical tools essential to each, although mercury thermometer daily presence may have been is not high, but at a crucial moment is very useful & ndash; Now all of a sudden was told that it is about to leave, forever does not let a person feel a little surprised. And the reason for the ban, the reason is that the mercury thermometer & other Mercury & throughout; Part ( Mercury) This chemical element with larger toxicity, it will evaporate at room temperature, and people with chronic poisoning through breathing, eating, etc in the 1950 s, Japan had happened the first time that shocked the world, caused by industrial wastewater emission pollution hazards disease & ndash; “ Minamata disease & throughout; , and the culprit is Japan in the development of the disease in chemical industry headed by nitrogen industrial need used as catalyst of mercury, when the latter as the wastewater discharged into rivers and even the oceans, polluted fish and shrimp and produce poisonous methyl mercury, transmitted to humans by eating again. But it is understood that at least hundreds of thousands of people affected. And this is why the ban will & other; Minamata & throughout; The cause of the name. And while a thermometer is small, but is not completely safe, like children to be published in newspapers often break the mercury thermometer and mercury ingested the last example, emergency hospital is living vigilant, even though mercury concentrations in mercury thermometer is very low, can not be absorbed by human body of mercury ion, but consider that children are not good at expression, so still can be a big trouble because of the delay treatment opportunity, let alone a thermometer after the break, the outside of the glass pieces are also likely to cause harm to the lower self nursing ability of children. And speaking of which, mercury thermometers also seems to be less worthy of honor. So, in the left, we have to take what to replace it? Counting those alternatives on the market at present actually is not perfect already some other kinds of thermometer, such as electronic thermometer, ear temperature gun, sticker thermometer, the pacifier thermometer and disposable thermometer and so on. And what are the advantages and disadvantages between them? ( Figure 2: general thermometer disadvantages) To discuss this, also need to start with the basic knowledge of temperature measurement. The human body can be used to measure the temperature of parts has a total of 5, respectively is alar, forehead, ears, mouth and rectum. And different clinical thermometer to measure temperature is distinct, in addition the fever of the different parts of the body temperature also have different standard, such as the underarm normally with more than 37 degrees Celsius as fever, fever and oral and rectal standard for more than 38 degrees Celsius. And temperature is accurate and the key point is whether monitoring site can into a confined space, this is also why when axillary temperature will be required to clamping arms, in the oral cavity is the cause of the need to shut up, and based on this, we can be clear at a glance the advantages and disadvantages of the thermometer. First is covering for the measured parts, traditional mercury thermometer and electronic thermometers can be used in axillary, usually oral, rectal, and ear temperature gun, as the name implies, is the use of ear temperature measurement; In addition to the forehead thermometer, it is applied to the brow & ndash; By comparison, the traditional mercury thermometer and electronic thermometers can achieve better impermeability, and ear temperature gun need to straighten the pinna before measuring temperature, the temperature gun all block the external auditory canal, more troublesome. Forehead thermometer is because the test point in the open forehead, basic cannot achieve closure. The second is accuracy, the accuracy of traditional mercury thermometer is the highest, compared with using the ear of the infrared temperature measurement temperature gun and although the forehead thermometer temperature quickly, but the accuracy is not high, especially the measurement result is highly affected by the environmental temperature, such as the winter and summer, the temperature of the surrounding environment will greatly affect the temperature measurement; While electronic thermometers need calibration accuracy, often for a basic only when sick will need products, the birth defect was obviously make it is unreliable. Then the risk, the traditional thermometer due to mercury, make its oral and rectal temperature measurement is not insurance, relatively electronic thermometer is relatively not the trouble, whereas ear temperature gun use improper damage may exist the danger of the ear canal, particularly for infants and young children. In conclusion we can concluded that a qualified thermometer, should be applied in the armpit and enough enclosed space and have precise accuracy and adequate security & ndash; So the existing equipment is difficult to considerate, so we have a choice? For temperature instrument industry, design a perfect intelligent thermometer is the trend.