Textiles. Tests for colour fastness - Grey scale for assessing staining Ingestion-build-159183 signalling and telecommunication apparatus installed

signalling and telecommunication apparatus installed inside the substation and connected to substation equipment is covered by EN 50121-5:2016

track configuration

incorporating sealed motor-compressors

This characteristic contributes to the surface appearance and to the degree of coverage over sharp edges

plastic or aluminium

Textiles. Tests for colour fastness - Grey scale for assessing staining Ingestion-build-159183 signalling and telecommunication apparatus installed1 Scope This document describes the grey scale for determining staining of adjacent fabrics in colour fastness tests, and its use. A precise colorimetric specification of the scale is given as a permanent record against which newly prepared working standards and standards that may have changed can be compared.