Description: Part of the total active maintenance time required to perform preventive maintenance; Name: active period of preventive maintenance
Description: part of the active maintenance time taken to perform a preventive maintenance; Name: active preventive maintenance time
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