IGC1Application carrige of liquified gases having a vapour pressure exceeding 2.8bar absoluteat a temp of 37.80caAll ships irrespective of size including those of less than 500grtbConstruction identifable with the ship begincassembly of that ship has commenced atleast 50tons or 1% of masson or after 1st October 1994.Note:- Ships constructed before 1st Oct 1994 are to comply with resolution MSC.5(48) adopted17-Jun-832Valve closure time from initiation of v/v to valve vlosure time should not exceed3600 UsecLRu is ullage volume at operating signalm3LR is maximum loading rate between ship & shorem3/hr3Cofferdam,ballast or void spaces at the after end of the aftermost or forward end of the forwrd mosthold spaces are excluded form Cargo area.4Cargo service space are workshop locker & store rooms of more than 2m2 in area used for cargoequiment5Cargo containment systemIntegral tanksDesign vapour pressure should not normally exceed 0.25bar however hull scantlings are increased0.7bar or lessBoiling point of cargo tanks should be below -100CMembrane tanks:-Are non self supporting tanks which consist of thin layer(membrane) supported through insulationby adjacent hull structure