reliability test, Weibull distribution, Laplace transforms, renewal process
It is no exaggeration to say that the PN-IEC 61124 standard is inapplicable in many branches e.g. electronic industry. It is because PN-IEC 61124 assumes failure rate to be constant in time. This paper rejects this assumption and presents mathematical foundation of an alternative of PN-IEC 61124 applicable in electronic industry.