ISO 15011-2:20 09定义了使用罩技术测量电弧焊、切割和气刨过程中产生的一氧化碳(CO)、二氧化碳(CO2)、一氧化氮(NO)和二氧化氮(NO2)排放率的实验室方法。该方法适用于所有开弧焊接工艺、切割和气刨，但根据工艺以及是否可以自动进行，使用不同设计的罩。

ISO 15011-2:2009 defines laboratory methods for measuring the emission rates of carbon monoxide (CO), carbon dioxide (CO₂), nitrogen monoxide (NO) and nitrogen dioxide (NO₂) generated during arc welding, cutting and gouging, using a hood technique. The methodology is suitable for use with all open arc welding processes, cutting and gouging, but different designs of hood are used depending on the process and whether or not it can be conducted automatically.