Home / Standards / GB/T 13409-2026 GB/T 13409-2026 Upcoming Design parameters and calculation methods for air-conditioning and ventilation of accommodation spaces on board ships 船舶起居处所空气调节与通风设计参数和计算方法 Standard Type GBT ICS 47.020.90 CCS U45 Status 即将实施 Issue Date 2026-01-28 Implementation 2026-08-01 Responsible Dept 国家标准委 Drafting Unit N/A