We have subdivided the external links into categories for ease of navigation:
eFunda Huge online engineering reference book, maths, mechanics, physics, ...
e-CFR Daily updated Electronic Code of Federal Regulations for automotive emission testing
UKAS (United Kingdom Accreditation Service) Test Lab Directories
Applegate Manufacturers Directory
Institute of Environmental Sciences and Technology (IEST)
Confederation of European Environmental Engineering Societies (CEEES)
Society of Environmental Engineers (SEE)
GUS Gesellschaft für Umweltsimulation e.V.
DEF STAN - UK MOD Resources
ETSI - European Telecomms Standards Institute (search for ETS 300 019-2)
JEDEC - Solid State Technology Association (search for vibration or JESD22-B103-B)