BSI PD ISO/TS 14778:2021

$102.76

Paper and board. Measurement of water contact angle by optical methods

Published By	Publication Date	Number of Pages
BSI	2021	22

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This document specifies the method for optical assessment of the contact angle between water and the surface of paper and board, where the process of droplet formation, application to planar substrates, or measurement of the droplet shape in contact with the solid is performed by automated equipment.

The limits of measurement are determined by the capabilities of the instrumentation used. The instrumental capabilities defined by this document use a digital image capturing system operating at a minimum of 50 frames per second and needs the ability to perform the first measurement after no more than 20 ms to 40 ms contact between the droplet and substrate.

The test method is applicable to most kinds of paper or board however it cannot be applicable to structured materials.

PDF Catalog

PDF Pages	PDF Title
2	undefined
6	Foreword
7	Introduction
9	1 Scope 2 Normative references 3 Terms and references
10	4 Principle
11	5 Reagents 6 Apparatus
13	7 Sampling 8 Conditioning 9 Preparation of test pieces
14	10 Procedure 10.1 General 10.2 Mounting of the test piece 10.3 Calibration and adjustment of apparatus
15	10.4 Method of measurement
16	11 Expression of results 12 Test report
17	Annex A (informative) Precision
20	Bibliography