Home / Standards / GB 17051-2025 GB 17051-2025 Upcoming Hygienic specification for facilities of secondary water supply 二次供水设施卫生规范 Standard Type GB ICS 13.060.20 CCS C51 Status 即将实施 Issue Date 2025-05-30 Implementation 2026-06-01 Responsible Dept 国家疾控局 Drafting Unit N/A