T/JSSL 0001-2021 Specification for Rapid Separation of Sludge Water in De-sludge Pits Technology

GB/T 5836.1-1992 Unplasticized polyvinyl chloride pipes for drainage in buildings GB/T 5836.1-2006 Unplasticized poly (vinyl chloride) (PVC-U) pipes for soil and waste discharge inside buildings GB/T 5836.1-2018 Unplasticized poly(vinyl chloride)(PVC-U)pipes for soil and waste discharge inside buildings GB/T 5836.2-1992 Unplasticized polyvinyl chloride fittings for drainage in buildings GB/T 5836.2-2006 Unplasticized poly (vinyl chloride) (PVC-U) fittings for soil and waste inside buildings GB/T 5836.2-2018 Unplasticized poly(vinyl chloride)(PVC-U) fittings for soil and waste discharge inside buildings GB/T 18314-2001 Specifications for global positioning system (GPS) surveys GB/T 18314-2009 Specifications for global positioning system(GPS) surveys GB/T 18314-2024 Specifications for survey and measurement of global navigation satellite system GB/T 18477.1-2007 Unplasticized polyvinyl chloride(PVC-U)structure wall pipline system for underground soil waste and drainage—Part 1:Double wall corrugated pipes DB/T 32.1-2020 Technical requirements of instruments in network for earthquake monitoring—Underground fluid observation instruments—Part 1:Pressure instrument for water level DB/T 32.1-2020 Technical requirements of instruments in network for earthquake monitoring—Underground fluid observation instruments—Part 1:Pressure instrument for water level DB/T 32.1-2020 Technical requirements of instruments in network for earthquake monitoring—Underground fluid observation instruments—Part 1:Pressure instrument for water level SL 17-2014 Dredging and Fill Sand Engineering Technical Specification SL 634-2012 Water Resources and Hydropower Unit Construction Quality Acceptance and Evaluation Standard - Embankment Engineering GB 50026-2020 Code for engineering surveying