Home / Standards / GB/T 47249-2026 GB/T 47249-2026 Upcoming Ships and marine technology—Design requirements for international ballast water transfer connection flange 船舶与海洋技术 压载水转运连接国际通用法兰设计要求 Standard Type GBT ICS 47.020.30 CCS U55 Status 即将实施 Issue Date 2026-03-31 Implementation 2026-07-01 Responsible Dept 国家标准委 Drafting Unit N/A