NBN EN 648 : 2007
Current
The latest, up-to-date edition.
PAPER AND BOARD INTENDED TO COME INTO CONTACT WITH FOODSTUFFS - DETERMINATION OF THE FASTNESS OF FLUORESCENT WHITENED PAPER AND BOARD
01-12-2013
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Test materials and equipment
6 Reagents
7 Sampling
8 Preparation of sample
9 Procedure A (long duration contact)
10 Procedure B (short time contact)
11 Comparison papers
11.1 Solutions for comparison papers
11.2 Preparation of fluorescent whitened comparison
papers
12 Evaluation
13 Test report
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