| 摘要 |
PURPOSE:To avert the chance for direct contact of a compsn. with a co-existing material and to thoroughly eliminate contamination troubles by isolating the inside and outside of a bag for housing the compsn. by a film layer and microporous layer structure. CONSTITUTION:A solid material 4 of an oxygen indicator compsn. is hermetically packaged into the bag having a housing part 3 provided with a transparent part and a joint part 2. The oxygen indicator compsn. refers to a compsn. which exhibits a color change according to the presence or absence of oxygen and is a compsn. essentially consisting of a reducting agent, a dye to exhibit a color change when reduced by the reducing agent and a solvent. The solid material 4 refers to a solid or solidified material of the oxygen indicator compsn. The film 1 to be used for the bag has, for example, <=100,000ml/m<2> Datm (25 deg.C, 60% RH) oxygen permeability. The joint part 2 of the bag is joined by at least a piece, per point, of yarn or yarn-like material 5 disposed thereto. Part of the yarn-like material 5 exists in the housing part 3 of the bag and part thereof arrives at the outside of the bag.
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