Committees responsible
National foreword
Guide
Introduction
1. Scope
2. Definitions
3. The role of reference materials in measurement
science
4. Measurement uncertainty
5. Homogeneity of materials
6. General principles of certification
7. Certification by a definitive method
8. Certification by interlaboratory testing
9. Certification based on a metrological approach
Annex
A. Bibliography
Tables
1. ANOVA table
2. ANOVA table
3. Trace elements in milk
4. Results of analyses of olive-tree leaves
5. Determination of pesticides in powdered milk spiked
with certain compounds
Figures
1. An example of results of measurements by two
operators using two instruments on eight different
days
2. Histogram of the frequency (number of ampoules)
versus the ratio of the activity of 137 Cs standards
to a radium reference standard (RRS20)
3. Schematic diagram of the process of preparation and
certification of an RM by interlaboratory consensus
4. Schematic diagram for statistical evaluation of
interlaboratory results for certification of an RM
5. Experimental scheme for an interlaboratory programme
6. Results of the first and second intercomparison of
analyses of carbon monoxide in nitrogen
7. Evolution of results in successive intercomparisons
for the determination of aflatoxin in milk powder
8. Results of individual laboratories for oxygen/nickel
ratio
9. Determination of cortisol in reconstituted human
serum
10. a) Successive results for the determination of
gamma-glutamyltransferase in albumin: First and
second intercomparisons
b) Successive results for the determination of
gamma-glutamyltransferase in albumin: Final
campaign