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ガス中の油分含有量はppmで表されます

2017-12-08View Original

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ガス中の油分含有量は一般的にppmで表されますが、このppmは質量比なのでしょうか、それとも体積比なのでしょうか?
Reply #22017-12-08
体積比は、体積が分子数に対応するためで、質量比はmg/m3で表されます
Reply #32017-12-08
PPm、百万分の一、体積比。
Reply #42017-12-11
特に断りがない限り、ppmは体積含有率を指すものとする
Reply #52017-12-13
私の理解では、ガスとは体積比です;液体は質量比です。

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