ISO 7263-2:2018
Corrugating medium — Determination of the flat crush resistance after laboratory fluting — Part 2: B-flute
This document describes a method for the determination of the flat crush resistance of a corrugating medium after laboratory fluting using a B-flute geometry.
The procedure is applicable to any corrugating medium intended to be used, after fluting, in the manufacture of corrugated board.
NOTE ISO 7263-1 describes a method to determine the flat crush resistance using an A-flute geometry.
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Apparatus
6 Sampling
7 Conditioning
8 Preparation of test pieces
9 Procedure
9.1 General
9.2 Testing immediately after fluting
9.3 Testing after 30 min of reconditioning
9.4 Fluting and testing
10 Expression of results
10.1 Flat crush resistance
10.2 Flat crush resistance index
11 Test report
Annex A (informative) Maintenance of fluting rolls (horizontal type)
Annex B (informative) Precision data
Bibliography
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Apparatus
6 Sampling
7 Conditioning
8 Preparation of test pieces
9 Procedure
9.1 General
9.2 Testing immediately after fluting
9.3 Testing after 30 min of reconditioning
9.4 Fluting and testing
10 Expression of results
10.1 Flat crush resistance
10.2 Flat crush resistance index
11 Test report
Annex A (informative) Maintenance of fluting rolls (horizontal type)
Annex B (informative) Precision data
Bibliography