zero air

English

Pronunciation

  • Rhymes: -ɛə(ɹ)

Noun

zero air

  1. (analytical chemistry, chromatography) Atmospheric air specially cleaned so that it contains less than 0.1 ppm of hydrocarbon impurities.
    For calibration, first pass a known range of concentrations of the gas through the gas chromatograph, for comparison with zero air that contains effectively none of the gas to be measured.

References

This article is issued from Wiktionary. The text is available under Creative Commons Attribution-Share Alike 4.0 unless otherwise noted. Additional terms may apply for the media files.