Description: Reliability of an object, which is determined by design planning and manufacture under expected operating and maintenance conditions; Name: Reliability that's expected
Description: Reliability of an item determined by design and manufacture under expected conditions of operation and maintenance ; Name: Expected reliability
Description: ten times the logarithm to the base 10 of the ratio of the sound power of a source, p, to a reference value, p0, expressed in decibels; Name: sound output level