新开发的测定煤层中瓦斯含量的方法是:将煤炭试样放入密闭容器中,使用脱气装置在容器中进行脱气,使瓦斯游离出来并测定其含量。此方法在Barbara实验矿进行了试验。试验结果表明,测定精度与过去常用的方法相同,但测定装置的构造则显著简单,且脱气时间得以缩短。 A newly developed method for determining the gas content in a coal seam is to place the coal sample in a closed container, degassing it in a container using a degassing device to allow the gas to escape and determine its content. This method was tested at Barbara Experimental Mine. The test results show that the measurement accuracy is the same as in the past, but the configuration of the measuring device is remarkably simple and the degassing time can be shortened.