TEMPERATURE AND TIME INDICATORS OF STERILIZATION Russian patent published in 2003 - IPC

FIELD: medicine. SUBSTANCE: invention refers to aids measuring temperature, to chemical indicators and can be used to control processes of sterilization of articles of medical assignment. Achievement of contrast change of color in narrower limits both by temperature and time makes it feasible to realize certain composition of temperature and time indicators. Temperature- sensitive coat additionally has salt of trivalent and pentavalent metals, binding varnish, not changing its color at temperature below sterilization temperature and pigment insoluble in water satisfying following relation Tst<=Tdecomp >-10 C, where Tst -is sterilization temperature; Tdecomp is temperature of decomposition of pigment. EFFECT: achievement of contrast change of color. 3 cl, 4 tbl