High grammage medical paper sterilization roll (60g/m²) and double layer of clear polystyrene/polypropylene film. Three side welds of impermeable and homogeneous channels for maximum microbic protection. Equipped with chemical indicators for turning for steam or EtO gas (ethylene oxide) sterilizations. Adequate pelability without emitting paper fibers or tearing the paper when opening the container. Fully compliant with directive 93/42/EEC (and subsequent amendment 2007/47/CE) and standard EN-868-1