Details of the changing chemical colour indicators:
•   steam method: pink colour turns brown after sterilization in an autoclave
•   EtO gas method with ethylene oxide: green colour turns yellow after sterilization in an autoclave

Tips:
•   carefully examine the size of the items to be
sterilized. No more than 3/4 of the volume of the packaging must be taken up by the contents;
•   make sure that there is a gap of at least 3 cm between the item to be sterilized and the seal;
•   the sealing strip must be at least 8 mm wide to conform with the EN 868-5 standard;
•   protect any sharp points with special covers;
•   use an absorbent gauze to prevent any lubricated turbines and wands from soaking the paper with oil;
•   when opening pouches, hold the paper side still and peel the film downwards to access the sterile instruments.