2003/190/EC: Commission Decision of 18 March 2003 on the publication of the reference of standard EN 521:1998 "Specifications for dedicated liquefied petroleum gas appliances — Portable vapour pressure liquefied petroleum gas appliances", point 5.7.2.1, in accordance with Council Directive 90/396/EEC (Text with EEA relevance) (notified under document number C(2003) 711)