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BS EN 3475-705:2022 – TC

BS EN 3475-705:2022 – TC

$112.35

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

Published By Publication Date Number of Pages
BSI 2022 32
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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
1 30453692
19 A-30437722
20 National foreword
23 European foreword
24 Introduction
25 1 Scope
2 Normative references
3 Terms and definitions
26 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
27 5.1.4 Illumination and viewing system
28 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
29 5.3.2 Picture definition
5.3.3 Sample area
5.3.4 Number and location of measurements
30 5.3.5 Determination of contrast values
6 Requirements
31 Bibliography

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BS EN 3475-705:2022 - TC
$112.35