CSN EN ISO 15083 This International Standard specifies requirements for pumping or alternative means designed to remove normal accumulations of bilge water for small craft with a hull length, LH, up to 24 m according to ISO 8666. This International Standard does not set requirements for bilge pumps or bilge-pumping systems designed for damage control. Original English text of CSN EN Standard. The price of the Standard included all amendments and correcturs.