portable tank - a tank, other than a part of a means of transport, that is designed to be loaded into, loaded on or temporarily attached to a vehicle or a ship, that is equipped with skids, mountings or accessories to facilitate handling of the tank by mechanical means but does not include a multi-unit tank car tank, rahvusvahelise ohutute konteinerite konventsioonile või rahvusvahelise merenduse ohtlike kaupade koodeksile (edaspidi IMDG koodeksile) vastav rohkem kui 450-liitrise mahutavusega multimodaalne paak