TWO NEW STANDARDS FOR UK ROAD SIGNS

EN 12899–1: (2007) parts 1,4, and 5 have now been published which include Annex ZA

and the National Annex NA which will allow CE marking.

The Standard is based only for Glass beaded materials that can be CE marked.

This Standard shall become a national Standard by May 2008,and conflicting Standards withdrawn.

EN 12899–1: (2007) supersedes EN 12899-1:2001.

Accelerated natural weathering must be undertaken.

CLASS REF 2 will change again to CLASS RA2 and CLASS REF 1 to CLASS RA1

Highways Agency letter.http://www.pamasigns.com/MarkPooleyPDF.pdf

BS 8408:2005 IS THE UK SPECIFICATION FOR MICROPRISMATIC SHEETINGS.

Microprismatic materials can be found in the relevant European Technical Approval (ETA).

Manufacturers should obtain the performance specifications from the purchaser.

Microprismatic materials can offer the potential to produce higher levels of retroreflection but not

all and in every location, the performance of microprismatic materials is sensitive to location of the

sign relative to the drivers eye's and vehicle's headlamps which can result in complex variation of the

coefficient of retroreflection.