NEN EN 1230-2 : 2009

Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Reagents
   5.1 Test substance
   5.2 Saturated magnesium nitrate solution
   5.3 Saturated sodium chloride solution
6 Test panel
7 Test conditions
8 Equipment
   8.1 General
   8.2 Vessels
   8.3 Petri dishes
   8.4 Supports for the Petri dishes in the glass jars
   8.5 Small glass dishes or odourless plastic disposable
        dishes
   8.6 Spoons
   8.7 Evaluating forms
   8.8 Water and glasses or drinking cups
9 Sampling and storage of sample
10 Preparation of sample
11 Procedure
12 Evaluation
   12.1 General procedure
   12.2 Triangle test
   12.3 Extended triangle test
   12.4 Multicomparison test
13 Expression of results
   13.1 Calculation
        13.1.1 Significance of taint (triangle and
                extended triangle test)
        13.1.2 Intensity of taint (extended triangle
                and multicomparison test)
   13.2 Result
14 Test report
Annex A (informative) Example of an efficient cleaning
         procedure
Annex B (informative) Example of assembly for the storage
         of test pieces and test substance
Annex C (informative) Example of an evaluation form for
         extended triangle test
Annex D (normative) Triangle test significance table
Bibliography

Defines whether a paper or board sample contains substances which may be transmitted through the air space to a test substance and affect its taste.