BS ISO 11556:1998:2003 Edition
$102.76
Paper and board. Determination of curl using a single vertically suspended test piece
| Published By | Publication Date | Number of Pages |
| BSI | 2003 | 18 |
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 1 | BRITISH STANDARD |
| 2 | National foreword |
| 3 | Contents |
| 7 | Introduction 1 Scope 2 Normative references 3 Definitions 3.1 curl |
| 8 | 3.2 induced curl 3.3 double curl 4 Principle 5 Apparatus 6 Sampling |
| 9 | 7 Preparation of test pieces 8 Procedure 8.1 General information 8.2 Method |
| 10 | 9 Calculations 9.1 Magnitude of curl 9.2 Angle of curl axis 9.3 Variation in side towards which paper or board curls |
| 11 | 10 Repeatability and reproducibility 11 Test report |
| 12 | Annex A (informative) Illustrations of magnitude and types of curl A.1 Measurability of curl magnitude Figure 1 – Measurability of curl magnitude A.2 Measurement parameters for determining curl magnitude Figure 2 – Parameters for determining curl magnitude |
| 13 | A.3 Types of curl Figure A.3 – Top-side curl with axis perpendicular to machine direction Figure A.4 – Top-side curl with axis parallel to machine direction Figure A.5 – Top-side diagonal or twist curl |
| 14 | Annex B (normative) Method of test piece support during curl measurement (illustrated for circular test p… Figure B.1 – Apparatus for test piece support during curl measurement |
| 15 | Annex C (normative) Modified engineer’s vernier calliper for determining chord length ( Figure C.1 – Modified engineer’s vernier calliper |
| 16 | Annex D (informative) Examples of alternative curl calculations Figure D.1 – Curled and twisted test piece |
| 17 | (informative) Bibliography |
