noun
breakthrough (of a contaminant through a filter)
Technical term used in industrial hygiene, respiratory protection, and filtration engineering. Refers to the point at which a filter or cartridge can no longer effectively remove a contaminant.
有機ガス用防毒マスクの破過時間を測定した。
We measured the breakthrough time of the organic vapor respirator cartridge.
破過曲線から吸着剤の寿命を推定する。
The service life of the adsorbent is estimated from the breakthrough curve.