BS 8442:2006 pdf download – Miscellaneous road traffic signs and devices – Requirements and test methods
c) The degree of ingress protection required if it is higher than that specified in 13.2.1, 13.3.1 and 13.4.1.
d) The length of a zebra crossing or refuge beacon post above ground within the limits prescribed by the Pedestrian Crossings Regulations and the Traffic Signs Regulations and General Directions (see 13.3.2.1 and 13.3.2.2).
e) The method of securing a flashing amber light unit to a post (see 13.4.1).
4.2 Items to be agreed The following item to be agreed between the contracting parties are specified in the clauses referred to and shall be fully documented. For compliance with the standard both the definitive requirements specified throughout the standard and the following documented item shall be satisfied.
a) If testing of sign face material is to be carried out with the sample attached to a substrate other than 3 mm aluminium sheet (see 5.1.2).
5 Sign face materials
5.1 Sampling
5.1.1 Test samples Samples for performance testing shall be selected randomly, e.g. in accordance with one of the sampling procedures given in the BS 6001 and BS 6002 series of standards, and shall be representative of the normal production of the sheeting materials to be tested. NOTE Guidance on the selection of sampling procedures from BS 6001 and BS 6002 is given in BS 6000.
5.1.2 Mounting of samples If it is necessary for the material under test to be mounted on a substrate, the material to be tested in accordance with this standard shall be applied to 3 mm aluminium sheet conforming to BS EN 485-1 or other agreed substrate in accordance with the material manufacturer’s instructions [see 4.2a)]. Any protective coatings required by the material manufacturer shall be applied in accordance with the manufacturer’s instructions.
5.2 Visual performance
5.2.1 Chromaticity
5.2.1.1 Daylight chromaticity
5.2.1.2 Non-retroreflective signs When tested in accordance with BS EN 12899-1:2001, 5.2.1.1, the chromaticity and the luminance factor shall conform to BS EN 12899-1:2001, Table 3.
5.2.1.2.1 Retroreflective sign face materials 6.2.1.2.1.1 Glass bead When tested in accordance with BS EN 12899-1:2001, 5.2.1.2, the chromaticity and the luminance factor shall conform to BS EN 12899-1:2001, Table 5.
6.2.1.2.1.2 Microprismatic When tested in accordance with BS 8408:2005, 5.2.1.1, the chromaticity and the luminance factor for non-fluorescent microprismatic material shall conform to BS 8408:2005, Table 2.
NOTE The chromaticity boxes for non-fluorescent materials in BS 8408:2005 and BS EN 12899-1:2001 are the same. When tested in accordance with BS 8408:2005, 5.2.2.1, the chromaticity and the luminance factor for fluorescent microprismatic material shall conform to BS 8408:2005, Table 4.5.2.1.3 Night-time chromaticity of microprismatic material
NOTE Non-retroreflective signs may be illuminated by external lighting at night. At present, there is no test for the night-time chromaticity of glass bead sign face materials. As a result, this sub-clause is limited to microprismatic sign face material. When tested in accordance with BS 8408:2005, 5.2.1.2, the chromaticity and the luminance factor for non-fluorescent microprismatic material shall conform to BS 8408:2005, Table 3. When tested in accordance with BS 8408:2005, 5.2.1.2, the chromaticity and the luminance factor for fluorescent microprismatic material shall conform to BS 8408:2005, Table 5.
5.2.2 Photometric requirements
5.2.2.1 Glass bead sign face materials When measured in accordance with the procedure in CIE 54.2, using CIE standard illuminant A, the coefficient of retroreflection (R A ) of retroreflective glass bead material shall conform to BS EN 12899-1:2001, Table 8 or 9, as required.
5.2.2.2 Microprismatic sign face materials Microprismatic materials shall be assessed and rated in accordance with the procedures in BS 8408. The materials shall have the characteristics specified by the purchaser [see 4.1a) and BS 8408:2005, Annex I].