National foreword
Committees responsible
Method
1. Scope and field of application
2. References
3. Definitions
4. Principle
5. Apparatus
6. Sampling
7. General test conditions
8. Expression of results
Annex
A. Examples of application of the 'A' - 'not A' test
B. Extract from chi 2 table
C. Examples of answer forms for 'A' - 'not A' test
Tables
1. Observed numbers
2. Observed values for example 1
3. No significant difference in recognition
4. Observed values for example 2
5. Observed values for example 3 (for one assessor)
6. Observed values for example 4
7. Critical values of chi 2