Vir - besedilo: 31997L0023 Directive 97/23/EC of the European Parliament and of the Council of 29 May 1997 on the approximation of the laws of the Member States concerning pressure equipment, Article 1, 2.1.2
Vir - besedilo: 31997L0023 Direktiva 97/23/ES Evropskega parlamenta in Sveta z dne 29. maja 1997 o približevanju zakonodaje držav članic v zvezi s tlačno opremo