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Metrology institutes  
> NMIs and other institutes, by country
Regional metrology organizations  
> Links to regional metrology organizations (RMOs)
Legal metrology authorities  
> Links to international, regional and national legal metrology bodies
Accreditation authorities  
> Links to international, regional and national accreditation bodies
Standards bodies  
> Links to international, regional and national organizations for standardization
Testing laboratories  
> Links to international, regional and national testing laboratories and organizations
Other international bodies  
> Links to other international and regional bodies
Food, drugs, medicine and the environment  
Conferences and workshops  
> Links concerning forthcoming conferences and workshops related to metrology
Publications  
> Links to scientific journals, selected newsletters, and miscellaneous sites of interest such as Adobe Acrobat Reader
Miscellaneous links  
> Links to other sites of interest