The scope of FprEN 203-1:2021 applies, with the following addition and modification of the 3rd paragraph: This document applies to catering, bakery and pizza ovens. This document applies to gas heated natural and forced convection ovens, multi-function ovens and atmospheric steaming ovens. This document does not cover appliances which are specifically designed for use in industrial processes on industrial premises nor appliances intended to be operated with the door open.