Portwest - Do You Know Booklet

DO YOU KNOW 49

WHAT IS GO/RT3279 ISSUE 8 THIS IS A RAILWAY GROUP STANDARD THAT SPECIFIES THE MINIMUM SPECIFICATION FOR HIGH-VISIBILITY WARNING CLOTHING IN THE UK RAIL INDUSTRY ENSURING PEOPLE ARE CONSPICUOUS WHEN ON OR NEAR RAILWAY LINES GO/RT3279

GO/RT3279 Is based on the European standard EN ISO20471. It de nes the minimum areas of high-visibility orange background materials to be used within a garment and the minimum level of photometric performance criteria for the re ective tape. The standard requires a re ective tape reading of ≥ 330 (cd/ lx.m 2 ) however at Portwest we insist on a reading of ≥ 400 (cd/ lx.m 2 ).

GO/RT 3279 Also speci es the requirements for a high-visibility mini-vest. Mini-vests conform to class 1 design under EN ISO 20471 and exceed the requirements for both the minimum area of the orange background material and retro-re ective tape in the garment.

Imposes a higher concentration for high-visibility orange fabric for railway workers. This increases the conspicuous nature of the fabric and ensures the rail worker is more visible. A spectrophotometer is used to check the chromaticity (colour intensity) of the orange high-visibility fabric. Portwest check every roll of fabric to ensure the fabric meets the requirements of GO/RT3279 .

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GO/RT 3279

EN ISO 20471

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