This standard specifies the system composition, performance indicators, working conditions, preparation methods, pre-calibration, information records, safety precautions, etc. involved in the preparation of carbon monoxide (CO), carbon dioxide (CO) and methane (CH) standard gases. This standard is applicable to the preparation of multi-level standard gas sequences for background atmospheric CO, CO and CH concentration observations and laboratory analysis and calibration.
QX/T 215-2013 history
2013QX/T 215-2013 Preparation method of standard gases for Carbon Monoxide, Carbon Dioxide and Methane