METHOD FOR MAKING TEMPERATURE-TIME AIR STERILISATION INDICATORS Russian patent published in 2012 - IPC A61L2/28 G01K11/16 

FIELD: medicine.

SUBSTANCE: invention refers to medicine and may be used in making indicators discolouring at a certain temperature after a preset period of time. According to the declared method, the indicator is presented by polyvinylchloride in the form of a powder to be mixed with thermal stabilisers, with a softener and binding excipients at mass ratio, %: polyvinylchloride 46-50; thermal stabiliser containing the elements Ba and Cd or Ba, Cd and Zn 1-3; epoxidated soya oil 2.5-0.2; softener 42-46; polyethylene wax 2.5-0.2; flow modifier 3-0.2; polyethylsiloxane fluid 0.2-0.1; fatty synthetic alcohols C₁₆-C₂₁ 0.5-0.15; olein 0.5-0.15. The prepared mass is moulded.

EFFECT: higher result reliability of air sterilisation control, higher information value.