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BS EN ISO 12625-7:2021

BS EN ISO 12625-7:2021

$102.76

Tissue paper and tissue products – Determination of optical properties. Measurement of brightness and colour with D65/10° (outdoor daylight)

Published By Publication Date Number of Pages
BSI 2021 20
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This document specifies testing procedures for the instrumental determination of brightness and colour of tissue paper and tissue products viewed under outdoor daylight conditions. It also gives specific instructions for the preparation of test pieces (single-ply, multi-ply products) and for the optical measurements of products, where special precautions can be necessary.

NOTE

The properties called ISO brightness and colour with C/2° (indoor daylight) are measured with an instrument adjusted to a much lower UV content than that specified in this document. The measurements of ISO brightness and colour with C/2° (indoor daylight) are described in ISO 12625-15 .

PDF Catalog

PDF Pages PDF Title
2 National foreword
4 European foreword
6 Foreword
7 Introduction
9 1 Scope
2 Normative references
3 Terms and definitions
11 4 Principle
5 Apparatus
5.2 Reference standard for calibration of the instrument
5.3 Working standards
12 6 Calibration
13 7 Sampling
8 Conditioning
9 Preparation of test pieces
10 Procedure
10.1 General
10.2 Measurement of D65 brightness
14 10.3 Measurement of colour (D65/10°)
11 Calculation
11.1 D65 brightness
11.2 Colour (D65/10°)
11.2.1 Single value
15 11.2.2 Mean value
11.2.3 Dispersion of the results
12 Test report
16 Annex A (informative) Precision
19 Bibliography

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BS EN ISO 12625-7:2021
$102.76