《中华人民共和国职业病防治法》以及与其配套的职业接触限值和检测方法已经施行10多年了。在各种化学有害因素的检测方法中,能够现场使用直读式仪器检测的只有一氧化碳和二氧化碳。《工作场所空气有毒物质测定无机含碳化合物》(GBZ/T 160.28)[1]中,数据计算的规定为“空气中一氧化碳或二氧化碳浓度由仪器直接读取,通常不再进行计算。”但事实上,许多检测设备显示的数值是以ppm或%为 The Law of the People’s Republic of China on Occupational Disease Prevention and Control and its supporting occupational exposure limits and testing methods have been implemented for more than 10 years. Among various methods of detecting chemical hazards, only carbon monoxide and carbon dioxide can be detected using a direct-reading instrument in the field. In the “Determination of inorganic carbon compounds in airborne toxic substances in the workplace” (GBZ / T 160.28) [1], the data is calculated as “the concentration of carbon monoxide or carbon dioxide in the air is directly read by the instrument and is usually not calculated.” " However, in fact, many test equipment displays values ​​in ppm or%