The objective of this Test Method is to specify the Gurley method for determining the air permeance of paper and board using an air resistance tester, the Gurley apparatus.
Table of contents
Header
About this publication
Preface
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Apparatus and materials
5.1
5.1.1
5.1.2
5.1.3
5.1.4
5.1.5
5.2
5.3
5.4
6 Sampling
7 Conditioning
8 Preparation of test pieces
9 Calibration
10 Procedure
11 Calculation and expression of results
11.1 Calculation of air permeance
11.2 Reporting the results
11.3 Standard deviation and coefficient of variation
