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: a group of construction elements with the same construction features and the same construction, which can be collated for the construction type approval and quality conformity controls as a result of similar manufacturing methods. they are generally allocated to a construction type specification. Note: in certain cases, construction element from different construction type specifications can be viewed as belonging to the same type and hence collated for the construction type approval and quality conformity controls; Name: Construction type of the connection, muff A1