MRA
Mutual Recognition Arrangement
NIST
National Institute of Standards and Technology
NMIs
National Metrology Institutions
OECD
Organization for Economic Co-operation and Development
OIML
Organisation Internationale de Métrologie Légale (International
Organization of Legal Metrology)
PT
Proficiency Testing
QA
Quality Assurance
QC
Quality Control
QMS
Quality Management System
RM
Reference Material
RMO
Regional Metrology Organization
RMP
Reference Material Producer
SI
Système Internationale — d’unités (International System of Units)
SRM
Standard Reference Material
VIM
Vocabulaire International de Métrologie (International Vocabulary
of Metrology: Basic and General Concepts and Associated Terms)
WELMEC
European Cooperation in Legal Metrology
WHO
World Health Organization
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Abbreviations and Acronyms