System of standards on information, librarianship and publishing. Bibliographic recording. Bibliographic description for electronic resources. General requirements and rules
Activities relating to drinking water and wastewater services. Guidelines for the management of wastewater utilities and for the assessment of wastewater services
Unified system of corrosion and ageing protection. Anode-oxide coatings for semifinished products made out of aluminium and alloys. General requirements and methods of control
