在钾氩法测定同位素地质时代的实验过程中、麦克劳压力计是测定氩气数量的唯一量具。就实验范围内而言.麦氏计的测量误差将直接影响到K—Ar年龄数据之精度。因此,对麦氏计的测量误差进行系统讨论是很必要的。 现以武汉玻璃仪器厂生产的二等标准规*为例,采用无标定标精确测量法, In the process of potassium-argon determination of isotopic geology, the McLall pressure gauge is the only gauge used to determine the amount of argon. As far as the experiment is concerned, the measurement error of the wheat germ meter will directly affect the accuracy of the K-Ar age data. Therefore, it is necessary to systematically discuss the measurement error of the wheat germ meter. Now Wuhan Glass Instrument Factory production of second-class standard * as an example, the use of non-standard calibration accurate measurement,