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一、冰点的制作和使用纯水的冰水混合物(冰点)是固、液两相共存状态,在压强为1个标准大气压时其温度值为0℃,利用这一原理制成的冰点装置,用来测量玻璃液体温度计的零点温度值。冰点器在玻璃温度计的计量检定方面发挥着非常重要的作用。根据JJG130-2011《工作用玻璃液体温度计》检定规程的规定,检定玻璃液体温度计的零位时,要用到冰点器,复现冰点温度,采用定点
First, the freezing point of the production and use of pure water ice water mixture (freezing point) is the solid, liquid two-phase coexistence state, at a pressure of 1 standard atmospheric pressure when its temperature is 0 ℃, the use of this principle made of freezing point device, Used to measure the zero temperature of glass liquid thermometer. Freezing devices play a very important role in the metrological verification of glass thermometers. According to JJG130-2011 “working glass liquid thermometer” test rules, the determination of zero liquid glass thermometer, we should use the freezing point, the temperature of ice point, the use of fixed point