Portwest - Do You Know Booklet
DO YOU KNOW 1
HOW DO WE TEST OUR HIGH-VISIBILITY GARMENTS TO EN 471 , EN ISO 20471 AND GO/RT 3279 ?
EN ISO 20471
GO/RT imposes a higher concentration for high visibility orange fabric for railway workers. This increases the conspicuous nature of the fabric and ensures that the rail worker is more visible.
A spectrophotometer is used to check the chromaticity – “colour intensity” – of fabric.We use this to ensure every roll of fabric meets the requirements of EN ISO 20471, EN 471 and GO/RT 3279.
We use a retroflectometer to check the performance of every roll of reflective tape.The retroflectometer measures the coefficient of two rotating angles. EN ISO 20471 and EN471 state the reading should not be below 330 however at Portwest we insist on a reading of 400 plus.
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