This document specifies requirements for the calibration and validation (QAL2), the ongoing quality assurance during operation (QAL3) and the annual surveillance test (AST) of automated measuring systems (AMS) used for monitoring total mercury emissions from stationary sources to demonstrate compliance with an emission limit value (ELV). This document is derived from EN 14181 and is only applicable in conjunction with EN 14181. This standard also specifies type testing (QAL1) requirements in Annex B that will be incorporated into EN 15267-3 when that standard is next revised. This document is applicable by direct correlation with the standard reference method (SRM) described in EN 13211.