This standard specifies the classification and marking, requirements, test methods, inspection rules, marking, packaging, transportation and storage of hydraulic hinged fireproof watertight doors (referred to as watertight doors). This standard applies to the design, manufacture and acceptance of hydraulic hinged fireproof watertight doors with working water pressure not greater than 1.0 MPa for ships and offshore engineering.
CB/T 4273-2013 Referenced Document
CB/T 1102 General specification for hydraulic system of ship
GB/T 8923.1-2011 Preparation of steel substrates before application of paints and related products.Visual assessment of surface cleanliness.Part 1:Rust grades and preparation grades of uncoated steel substrates and of steel substrates after overall removal of previous coa
CB/T 4273-2013 history
2013CB/T 4273-2013 Hydraulic watertight hinged fireproof door