REFERENCE MATERIALS
World
Federation for Culture Collections (WFCC)
Databases
by Culture Collections (WDCM)
International
Database for Certified Reference Materials
(COMAR-BAM)
Virtual
Institute for Reference Materials (VIRM)
Food
Analisys Performance Assessment Scheme
(FAPAS)
National
Institute of Standard and Technology
(NIST)
Laboratory
of the Government Chemist
(LGC) |