Testing Guideklines of DVGW-Forschungstelle
Testing Guideklines of DVGW-Forschungstelle Karlsruhe at Engler-Bunte-Institute - Test Laboratory Gas -
http://www.pl.dvgw-ebi.de/guide/gl_main.html

CEN Standards and Directives
List of relevant standards for particular directives (z.B.GAD)
http://www.newapproach.org/Directives/Default.asp

List of Harmonised Standards of particular Directives
http://ec.europa.eu

EU-Infos about GAD
Informations about Gas Appliance Directive on EU-Server
http://ec.europa.eu/enterprise/.../index_en.htm

GADAC GUIDANCE Sheets
GUIDE TO IMPLEMENTATION OF GAS APPLIANCE DIRECTIVE (90/396 /EEC)
http://ec.europa.eu/enterprise/.../guidances/

Pressure Equipment Directive
97/23/Ec (PED)
http://ec.europa.eu/enterprise/.../index_en.htm

Low Voltage Directive
73/23/EC electrical equipment ... (LVD)
http://ec.europa.eu/enterprise/.../lvd/

Info about EMC-Directive (e.g. new 2004/108/EC)
http://ec.europa.eu/enterprise/.../index_en.htm

ECO-Design Directives
Directives under ECO Design, Energie Using Products
http://ec.europa.eu/enterprise/.../index_en.htm