scope:

CLC/TS 50612 provides guidance on the selection, use and maintenance of portable electrical apparatus conforming to EN 50379-1 [4] and EN 50379-2 [5] or EN 50379-3 [6] designed to measure combustion flue gas parameters of Type B and Type C gas-fired central heating boilers (hereafter referred to as boilers) using 1st, 2nd or 3rd family gases in domestic premises as a diagnostic instrument to assist an operative: a) in confirming satisfactory combustion at the time of commissioning, in accordance with appliance instructions or national or local regulations or standards; b) in confirming satisfactory combustion at the time of servicing in accordance with national or local regulations or standards or following servicing in accordance with appliance instructions; c) in confirming satisfactory combustion following maintenance, in accordance with appliance instructions or national or local regulations or standards.