I just read a paper “关于JJG20-2001标准玻璃量器检定规程中的几点商榷” (<计量技术>2006 No. 6, page 50), the author pointed out that some figures in JJG20-2001 附表中的表C.1 are incorrect (i.e. the coefficients corresponding to 17oC - 18oC are incorrect). To minimize the error in the calibration of glass equipment, it should be careful when using JJG20.
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