AACC- American Association for Clinical Chemistry
ACS - American Chemical Society
ANSI - American National Standards Institute
AOAC - AOAC International
ASTM - American Society for Testing and Materials
CAP - College of American Pathologists
CDC - Centers for Disease Control and Prevention
FDA - U.S. Food and Drug Administration
IAEA - Database of Natural Matrix Reference Materials
ISO - International Organization for Standardization
ISO - REMCO Worldwide listing of CRM Producers
NCCLS - National Committee for Clinical Laboratory Standards
NCSL/MSC - Measurement Science Conference
NRC - Canada CRM Program
NTIS - National Technical Information Service
USDA - U.S. Department of Agriculture
USGS - U.S. Geological Survey Geochemical Reference Materials
USP - U.S. Pharmacopeia