Last Updated
：2025/11/23
zero air
Noun
Japanese Meaning
大気中の炭化水素不純物が0.1 ppm以下にまで除去された、実験室でのガスクロマトグラフィーなどにおいてキャリアガスとして使用される非常に純度の高い空気。
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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.
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zero air
The laboratory used zero air to calibrate the gas analyzers before starting the measurements.
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The laboratory used zero air to calibrate the gas analyzers before starting the measurements.
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