Description: Alphanumeric string associated with a manufactured product that can be used to track the date, time, and circumstances of its manufacture; Name: Factory number
Description: alphanumeric character sequence assigned to a fabricated product, which allows the date, time and circumstances of fabrication to be traced; Name: fabrication number
Description: ten times the logarithm to the base 10 of the ratio of the sound energy, j, to a reference value, j0, expressed in decibels; Name: sound energy level