BS ISO 11556:2005
Current
The latest, up-to-date edition.
Hardcopy , PDF
English
10-31-2005
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Apparatus
6 Sampling
7 Preparation of test pieces
8 Procedure
8.1 General information
8.2 Method
8.2.1 Exposing the test pieces to the test environment
8.2.2 Measurement of chord length and chord-to-arc
distance
8.2.3 Identification of the side towards which the
paper or board curls
8.2.4 Measurement of the angle of axis of curl
9 Calculations
9.1 Magnitude of curl
9.2 Angle of curl axis
9.3 Variation in side towards which paper or board curls
10 Repeatability and reproducibility
10.1 Repeatability
10.2 Reproducibility
11 Test report
Annex A (informative) Illustrations of magnitude and types
of curl
Annex B (normative) Method of test piece support during
curl measurement (illustrated for
circular test pieces)
Annex C (normative) Modified engineer's vernier calliper
for determining chord length (C) and
chord-to-arc distance (h)
Annex D (informative) Examples of alternative curl calculations
Bibliography
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