申请人:PyMaH Corporation
公开号:EP0628317A1
公开(公告)日:1994-12-14
A sterilization autoclave vacuum testing device which comprises a transparent gas impervious layer 1 adhered to an indicator layer. The indicator layer comprising a steam porous medium having imprinted there on a pattern utilizing a thermochromic ink composition. The indicator layer 2 is adhesively bonded to a porous barrier layer substrate 3 having a predetermined porosity, sufficient to prevent a complete and uniform colour change of the thermochromic ink at a vacuum of at least about 711 mm of mercury (95 kPa) at a predetermined temperature.
一种灭菌高压釜真空测试装置,包括一个透明的不透气层 1 和一个指示层。指示层包括一个蒸汽多孔介质,其上印有利用热致变色油墨组合物形成的图案。指示层 2 与多孔阻隔层基板 3 粘接在一起,多孔阻隔层基板 3 具有预定的孔隙率,足以防止热致变色油墨在预定温度、至少约 711 毫米汞柱(95 千帕)的真空条件下完全均匀地变色。