ISO 6145-11:20 05规定了通过使用电化学产生校准组分并将其引入补充气流中来制备校准气体混合物的方法。通过改变通过电池电解质的气流或电荷，可以改变气体混合物的组成。通过将相对组合标准不确定度乘以覆盖因子k=2获得的校准气体含量的相对扩展不确定度U不大于5%。 ISO 6145-11:20 05中描述的方法旨在应用于体积分数范围（0.1至250）× 10-6的校准气体混合物的制备。

ISO 6145-11:2005 specifies a method for the preparation of calibration gas mixtures by using electrochemical generation of a calibration component and introduction into a complementary gas flow. By alteration of the gas flow or the charge passed through the cell electrolyte, it is possible to change the composition of the gas mixture. The relative expanded uncertainty of the calibration gas content, U, obtained by multiplying the relative combined standard uncertainties by a coverage factor, k = 2, is not greater than 5 %. The method described in ISO 6145-11:2005 is intended to be applied to the preparation of calibration gas mixtures in the volume fraction ranges (0,1 to 250) x 10^-6.