Abstract: The viscosity data of 61 gaseous substances under normal pressure are critically assessed. The data collected were published either for the fifty of the substances in the years from 1967 to 1979 or for the others from 1960 to 1966. The mathematical expressions used in the literature for correlating viscosity data of gaseous substances with temperature are reviewed, systematized and selected to correlate the data assessed. The coefficients of the selected correlations are determined by the method of least squares with a digital computer. The values of viscosity calculated by these correlations are then compared with the experimental measurements. For the four-coefficient correlations,(I)and In,the overall per cent deviations are 0.160 and 0.157 respectively. Equation(I) is recommended for simplicity of calculation. The two-coefficient correlations, and have nearly the same accuracy of estimating viscosity values. Equation (IV) is simple for use and equation (III) can correlate data of wider temperature range with an overall per cent deviation of 0.460.

摘要： 对61种气体物质的常压粘度数据进行了评定。其中50种物质的数据是在1967至1979年发表的,其它的发表于1960至1966年。对粘度与温度的关联式进行了评查、系统归类和选择。对所选择的关联式的常数用最小二乘法在电子计算机上确定其数值。对各种物质在不同温度下的粘度进行了计算,并与实验值进行比较。对于四常数关联式η=A_0+A_1T+A_2T~2+A_3T~3（Ⅰ）和lnη=A_0+B_0lnT+B_1/T+B_2/T~2 （Ⅱ）,其总平均误差分别为0.160％和0.157％。从计算简便考虑,推荐（Ⅰ）。两常数关联式η=KT~（3/2）/（C+T）（Ⅲ）、η=A_0+A_1T（Ⅳ）和η=aT~n（Ⅴ）有约略相同的计算准确性。（Ⅲ）的总平均误差为0.460％,并可适用于较广的温度范围内关联。（Ⅳ）的计算比较简便。