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世界各国从一九六九年开始陆续采用了一种新温标,即“1968年国际实用温标”(IPTS-1968).这种新温标的精度高,更加接近温度的真实值,而且测量范围大,比旧温标更加科学,更加先进. 为了使我国的温度标准适应经济建设、国防建设和科学技术的发展,并使我国的温度量值与国际取得一致,以便于我国同外国进行科学技术交流和贸易往来,中国科学院决定自一九七三年一月一日起在我国正式采用“1968年国际实用温标”,
Since 1969, countries all over the world have adopted a new temperature scale, the International Practical Temperature Scale (IPTS-1968) of 1968. This new temperature scale has higher accuracy and closer to the true value of temperature, and has a large measurement range , Is more scientific and advanced than the old temperature scale.In order to adapt our temperature standard to economic development, national defense construction and the development of science and technology, and make the temperature value in our country consistent with that of the international ones, in order to facilitate our country’s exchange of science and technology with foreign countries and Trade, the Chinese Academy of Sciences decided to formally adopt the “International Practical Temperature Scale 1968” in our country since January 1, 1973,