ICS93.030 CCSP41DB4401 广州市地方标准 DB4401/T285—2024 水务信息数据规范排水户设施 Waterinformationdataspecification—Draininghouseholdsfacilities 2024—10—14发布 2024—11—14实施 广州市市场监督管理局发布 DB4401/T285—2024 I目  次 前言.................................................................................III 1范围................................................................................1 2规范性引用文件......................................................................1 3术语和定义..........................................................................1 4基本规定............................................................................2 5数据内容及分层......................................................................3 6排水户设施要素代码及图例............................................................4 7数据属性结构........................................................................6 附录A（规范性）属性参数..............................................................22 参考文献..............................................................................28