我国煤矿是从六十年代末开始研制、生产比长式一氧化碳检定管的,十多年来,该产品的产量逐年增加,使用范围也有所扩大,对我国煤矿安全生产起到了一定的作用。据了解,现在国内生产比长式一氧化碳检定管的单位近20个,年总产量约为一百万支左右。由于检定管受操作条件和测定环境的影响, Since the end of 1960s, China’s coal mines have been developed and produced more than the long-type carbon monoxide test tubes. Over the past 10 years, the output of this product has been increasing year by year, and its use has also been expanded. This has played a certain role in the safety of coal mines in China. It is understood that now nearly 20 units of domestic production than the long carbon monoxide test tube, the total output of about 1 million. As the test tube by the operating conditions and the impact of the determination of the environment,