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BS EN 3475-705:2022

$86.31

Aerospace series. Cables, electrical, aircraft use. Test methods – Contrast measurement

Published By Publication Date Number of Pages
BSI 2022 14
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This document specifies the process to be applied for measuring the contrast of wire and cable identification markings against the background of the unmarked wire insulation. It has been developed primarily to define a reproducible process of contrast value determination for use both to determine the intrinsic laser markability of wires at the time of manufacture or later, and to enable electrical wiring systems manufacturers to ensure that the whole process of wire marking is carried out to the required standard.

PDF Catalog

PDF Pages PDF Title
2 National foreword
5 European foreword
6 Introduction
7 1 Scope
2 Normative references
3 Terms and definitions
8 4 Preparation of samples
5 Apparatus, measurement and process
5.1 Apparatus
5.1.1 Components of the measuring device
5.1.2 Equipment colour
5.1.3 Photometer
9 5.1.4 Illumination and viewing system
10 5.2 Measurement
5.2.1 Equipment design and measurement methodology
5.2.2 Measurement spot size
5.2.3 Measurement area
5.2.4 Calibration
5.2.5 Measurement tolerance
5.3 Process
5.3.1 Precautionary measures
11 5.3.2 Picture definition
5.3.3 Sample area
5.3.4 Number and location of measurements
12 5.3.5 Determination of contrast values
6 Requirements
13 Bibliography
BS EN 3475-705:2022
$86.31