Steam Sterilization - 134° C - 18 minutes

Regardless the method of steam production, the quality of water used for it shall be controlled and regularly analyzed
This water shall be:
• Drinkable, filtered in each case,
• Its hardness must not exceed 5 to 7°TH (1°TH = 10 mg calcium carbonate / L of water),
• Completely devoid of chlorine elements and of chlorides: < 2 mg/L,
• Content in phosphate lower then 0,5 mg/L,
• And an almost null content in minerals :
—> Silica : < 1 mg/L,
—> Iron : < 0.2 mg/L,
—> Cadmium : < 0.005 mg/L,
—> Lead : < 0.05 mg/L,

This water shall content:
• No tanates,
• No sulfites,
• No amines,
• No hydrazine,
• No chlorides,
• No permovapoline.
• Products often used by heating engineers to prevent corrosion or remedy to sedimentations in the pipes.
Those products are very corrosive to surgical instruments, as well as to the steam steriliser tank which is usually made off 316L stainless steel.