zero air
английский
Значение zero air значение
Что в английском языке означает zero air?
zero air
существительное
—
atmospheric air specially cleaned so that it contains less than 0.1 ppm of hydrocarbon impurities; it then is usable in laboratory procedures such as versions of gas chromatography in which sufficiently pure air may serve as a carrier gas.
Возможно, вы искали...
