Description: Date from which the production and / or development process is completed or from which a service is provided completely; Name: Fabrication date
Description: Date from which the production and / or development process is completed or from which a service is provided completely; Name: Date of manufacture
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