Suitable diluent air can be obtained from specialty gas suppliers, and in certain industrial settings, high-purity nitrogen is available as a plant-wide utility. Whatever the source, the diluent air must be free of detectable amounts of the target analyte, and—ideally—meet the following purified diluent air specifications:
MAXIMUM ALLOWABLE CONTAMINANTS
Compound | Max. Allowable |
CO | < 0.5 ppm |
Particulates | < 0.45 micrograms |
N2O | < 0.5 ppm |
NOx | < 0.5 ppm |
SO2 | < 0.5 ppm |
Total hydrocarbons | < 0.5 ppm |
Please contact us for specific purified diluent air recommendations pertaining to your project.