Description: operating time of the product from the commencement of its usage to the first failure ; Name: operating time until failure
Description: Operating time accumulated from the first use, or from restoration, until failure ; Name: Operating time to failure
Description: PN (nominal pressure) is an alphanumeric variable for reference purposes, relating to a combination of mechanical and measurement properties of a pipe component. It comprises the letters PN followed by a dimensionless number (according to EN 1333/96.08); Name: Nominal pressure of the muffs, A1