The main technical contents are: general principles, terminology, basic regulations, laying and installation of water supply and recycled water pipelines, laying and installation of rainwater and sewage pipelines, installation of pipeline ancillary facilities and pipe fittings, pipeline functional testing, and quality inspection.
T/CMEA 28-2022 history
2022T/CMEA 28-2022 Regulations for laying and installation of water and sewerage pipeline in urban utility tunnel