Jones Frank E, Harris Georgia L
32 Orchard Way South, Potomac, MD 20854.
National Institute of Standards and Technology, Gaithersburg, MD 20899.
J Res Natl Inst Stand Technol. 1992 May-Jun;97(3):335-340. doi: 10.6028/jres.097.013.
A new formulation of the density of air-saturated water as a function of temperature on the 1990 International Temperature Scale (ITS-90) is presented. Also, a new equation for calculating isothermal compressibility as a function of temperature on ITS-90 was developed. The equations are to be used to calculate the density of water, in the temperature range 5 to 40 °C on ITS-90, used in the gravimetric determination of the volume of volumetric standards.
本文给出了1990国际温标（ITS - 90）下空气饱和水密度随温度变化的新公式。此外，还推导了一个在ITS - 90下计算等温压缩率随温度变化的新方程。这些方程用于计算在ITS - 90下5至40°C温度范围内用于重量法测定容量标准量具体积的水的密度。
