A metal porous membrane capable of discriminating completion of at least one of sterilization and washing, a sterilization judging method for judging that sterilization of the metal porous membrane has been completed, and washing of the metal porous membrane is completed Which is different from the normal state. The metal porous film of the present invention is a metal porous film having a plurality of through holes, and has a photosensitive organic substance attached to at least a part of the metal porous film. With such a configuration, it is possible to easily determine that at least one of sterilization and cleaning of the metal porous membrane has been completed based on the photosensitive organic matter attached to the metal porous membrane.滅菌と洗浄とのうち少なくとも一方が完了したことを判別することができる金属製多孔膜、金属製多孔膜の滅菌が完了したことを判別する滅菌判別方法、及び金属製多孔膜の洗浄が完了したことを判別する洗浄判別方法を提供する。本発明の金属製多孔膜は、複数の貫通孔を有する金属製多孔膜であって、金属製多孔膜の少なくとも一部に付着した感光性有機物を有している。このような構成により、金属製多孔膜に付着した感光性有機物に基づいて金属製多孔膜の滅菌と洗浄とのうち少なくとも一方が完了したことを容易に判別することができる。
