continuous emission measurement
as defined in Commission Implementing Regulation (EU) 2018/2066 of 19 December 2018 on the…, Article 3, point (40) (Definitions)
a set of operations having the objective of determining the value of a quantity by means of periodic measurements, applying either measurements in the stack or extractive procedures with a measuring instrument located close to the stack, whilst excluding measurement methodologies based on the collection of individual samples from the stack;