PROBLEM TO BE SOLVED: To provide a method capable of obtaining a maximum water absorption rate of fiber for culture medium in a short time, specifically, a quality evaluation method of fiber for culture medium, and to provide an apparatus capable of obtaining a maximum water absorption rate of fiber for culture medium in a short time, specifically, a quality evaluation apparatus of fiber for culture medium.SOLUTION: A water-permeable container is filled with fiber for culture medium, and water is passed through the water-permeable container. A quality evaluation method comprises: a step of filling a water-permeable container with the fiber for culture medium a step of obtaining mass F0 of the fiber for culture medium in the water-permeable container a step of passing water into the water-permeable container and a step of obtaining a mass W of water absorbed into the fiber for culture medium after water is passed through the water-permeable container, and furthermore, comprises one or two or more of steps out of a step of calculating water absorption rate Ab a step of calculating a liquid phase rate RL a step of calculating a solid phase rate RF and a step of calculating a gas phase rate RG. Further, a quality evaluation apparatus comprises: a water-permeable container to be filled with the fiber for culture medium and water-passing means capable of passing water into the water-permeable container.COPYRIGHT: (C)2015,JPO&INPIT【課題】本発明は、培地用繊維の最大吸水率を短時間に求めることができる方法、即ち、培地用繊維の品質評価方法を提供することを目的とする。また、本発明は、培地用繊維の最大吸水率を短時間に求めることができる装置、即ち、培地用繊維の品質評価装置を提供することを目的とする。【手段】培地用繊維を透水性容器に詰め、該透水性容器内に通水する。透水性容器に培地用繊維を詰める工程と、透水性容器内の培地用繊維の質量F0を求める工程と、前記透水性容器内に通水する工程と、通水後の透水性容器内の培地用繊維に吸水した水の質量Wを求める工程と、を具備し、更に、吸水率Abを算出する工程、液相率RLを算出する工程、固相率RFを算出する工程、気相率RGを算出する工程、の1又は2以上の工程を具備する。また、培地用繊維を詰めるための透水性容器と、該透水性容器内に通水可能な通水手段とを具備する。【選択図】図4
