The stack shall be equipped with 3 platforms, one at the level of flue gas analyzers (CEMS), one for testingand one at the top. For the type of access to the main CEMS platform, the supplier must comply with the localregulations (Reference document: HJ75-2017 for Huaibei project). Other platforms can be accessed via cagedladders. Sampling points for statutory measurements shall be provided accessible from the testing platform.The platform of CEMS should be designed to ensure enough maintenance space, the operator will be able todismantle the sampling pipe without using space outside the fence.