Preface 1 Scope 2 Normative cited documents 3 Terms and definitions 4 Basic requirements 5 Data collection 6 Analysis of topological relationships of drainage systems 6.1 Draw “a picture” 6.2 Determine the water collection range of the pumping station 6.3 Determine the service scope of the sewage plant 6.4 Determine key nodes 7 Water use Volume and drainage analysis 7.1 Residential communities, public buildings, government agencies and institutions 7.2 Industrial enterprises 7.3 Comprehensive discharge statistics of sewage and wastewater 8 Sewage plant (pump) station operation data analysis 9 Water quality and quantity monitoring 9.1 General requirements 9.2 Background value monitoring 9.3 External water monitoring 10 Analysis of external water 10.1 General requirements 10.2 Calculation of the proportion of external water 10.3 Evaluation of external water within the catchment area 10.4 Analysis of inflow and infiltration through the canal and river pipe section 11 Determination of the degree of rainwater and sewage mixing 11.1 General requirements 11.2 Determination method 12 Outlet survey 13 Pre-diagnosis results Appendix A (normative) Pre-diagnosis work flow chart Appendix B (informative) Urban drainage pipe network pre-diagnosis record form Appendix C (informative) Urban drainage pipe network pre-diagnosis report outline
T/ZS 0275-2022 history
2022T/ZS 0275-2022 Technical specification for pre diagnosis of urban drainage network