Alternative means of showing compliance with the mandatory limit (basic restriction) on a particular electromagnetic field exposure (e.g. radiofrequency radiation) which utilises quantities that are more practical to measure. Reference levels are conservatively formulated such that compliance with the reference levels ensures compliance with the ba [..]

1) A standard value used to describe how much level is present in dB above or below this reference. 2) A term with the same meaning as the term Operating Level (the maximum average level that should n [..]

Two distinct meanings and different uses may be distinguished for reference levels. First, the reference level is used for the BAU scenario