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1、BRITISH STANDARD BS 7962:2000 Incorporating Amendment No. 1 Black materials for masking existing road markings Specification ICS 93.080.20 ? Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 15:00:43 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 7962:2000 This Bri
2、tish Standard, having been prepared under the direction of the Sector Committee for Building and Civil Engineering, was published under the authority of the Standards Committee and comes into effect on 15 April 2000 BSI 16 July 2004 The following BSI references relate to the work on this British sta
3、ndard: Committee reference B/509/2 Draft for comment 99/104002 DC ISBN 0 580 33129 6 Committees responsible for this British Standard The preparation of this British Standard was entrusted by Technical Committee B/509, Road equipment, to Subcommittee B/509/2, Horizontal road markings and road studs,
4、 upon which the following bodies were represented: British Coatings Federation Ltd. British Glass Manufacturers Confederation County Surveyors Society Department of the Environment, Transport and the Regions (Central Transport Group) Department of the Environment, Transport and the Regions (Highways
5、 Agency) Institution of Civil Engineers Institution of Highways and Transportation Retro-reflective Equipment Manufacturers Association Road Safety Marking Association Amendments issued since publication Amd. No.DateComments 1510416 July 2004Revision of 4.2 Licensed Copy: London South Bank Universit
6、y, London South Bank University, Fri Dec 08 15:00:43 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 7962:2000 BSI 16 July 2004 i Contents Page Committees responsibleInside front cover Forewordii Introduction1 1Scope1 2Normative references1 3Terms and definitions1 4Procedure for testing1 5Requirements
7、2 6Marking3 Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 15:00:43 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 7962:2000 ii BSI 16 July 2004 Foreword This British Standard has been prepared by Subcommittee B/509/2. This publication does not purport to includ
8、e all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, pages 1 to 3 a
9、nd a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 15:00:43 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 7962:2000 BSI 16 July 2004 1 Introduction Bla
10、ck masking materials are required to cover existing permanent road markings, on a temporary basis at road works, in order to provide clear and unambiguous horizontal signalization to drivers. Black masking materials are thermoplastic, paint, tapes or other materials. Black masking materials may be r
11、emovable or non-removable. 1 Scope This British Standard specifies the performance requirements for black materials used for masking existing road markings on asphalt road surfaces. Application methods are not covered by this standard. Suppliers are required to provide comprehensive application inst
12、ructions including the use of equipment, primers etc. 2 Normative references The following normative documents contain provisions which, through reference in this text, constitute provisions of this British Standard. For dated references, subsequent amendments to, or revisions of, any of these publi
13、cations do not apply. For undated references, the latest edition of the publication referred to applies. BS EN 1436:1998, Road marking materials Road marking performance for road users. BS EN 1824, Road marking materials Road trials. BS 3900-D5, Methods of test for paints Optical tests on paint film
14、s Part D5: Measurement of specular gloss of non-metallic paint films at 20, 60 and 85. 3 Terms and definitions For the purposes of this British Standard the following terms and definitions apply. 3.1 luminance factor ratio of the luminance of a body to that of a perfect reflector or transmitting dif
15、fuser, identically illuminated 3.2 skid resistance frictional force between tyre and road masking material available to oppose skidding 3.3 specular gloss ratio of the luminous flux reflected from an object in the specular direction for a specified source and receptor angle to the luminous flux refl
16、ected from glass with a refractive index of 1,567 in the specular direction 4 Procedure for testing 4.1 Laboratory tests Black masking materials shall initially undergo laboratory tests in accordance with 5.1, 5.2 and 5.3. The laboratory shall prepare samples of black masking materials applied to al
17、uminium plates of at least 3 mm thickness and free from contaminants. Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 15:00:43 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 7962:2000 2 BSI 16 July 2004 4.2 Road performance trials Black masking materials shall un
18、dergo road performance trials on a site which conforms to the test site criteria specified in BS EN 1824. The duration of the road trials for black masking materials shall be approximately three to four months. NOTEThere may be practical benefits from arranging the road trials at the same location,
19、and to commence at the same time as road trials for other road marking materials. Materials shall be applied, in accordance with the suppliers instructions, to cover three existing white markings; or a) permanent centre lane line markings; or b) transverse road trial line markings which conform to t
20、he relevant performance classes of BS EN 1436 following exposure to traffic. NOTEA 1 m section of each transverse road trial line marking is to be covered with black masking material placed centrally between the centre line and the edge line of the inside lane. The tests of the black masking materia
21、ls, following exposure to traffic, defined in 5.1, 5.2, 5.3 and 5.4, shall be made in situ. 5 Requirements 5.1 Luminance factor and colour 5.1.1 General The luminance factor and the chromaticity shall be measured using the measuring method specified in BS EN 1436:1997, Annex C. 5.1.2 Luminance facto
22、r Black masking materials shall have an initial luminance factor of no greater than 0.06, and a retained value following exposure to traffic of no greater than 0.06. 5.1.3 Colour Black masking materials, both when new and following exposure to traffic, shall conform to Table 1. Table 1 Chromaticity
23、region for black masking materials 5.2 Skid resistance The skid resistance of black masking materials, expressed in SRT units, shall be measured with a skid resistance tester according to the measurement method in BS EN 1436:1997, Annex D. Black masking materials shall have an initial skid resistanc
24、e of not less than 45, and a retained value following exposure to traffic of not less than 45. 5.3 Specular gloss The specular gloss of black masking materials shall be determined using the test methods specified in BS 3900-D5. Measurements shall be taken at the 85 geometry only. Black masking mater
25、ials shall have an initial value for specular gloss of no greater than 4, and a retained value following exposure to traffic of no greater than 4. NOTEThe values given for specular gloss may be revised when more experience of using this test method with black masking materials has been gained. Coord
26、inatesCorner points 1234 x0.3850.3000.2600.345 y0.3550.2700.3100.395 Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 15:00:43 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 7962:2000 BSI 16 July 2004 3 5.4 Removability NOTERequirements for removability apply only
27、 to preformed materials defined as removable. Preformed black masking materials shall be capable of being removed from the road surface, either intact or in large pieces, in such a way that no damage, deformation or cracking occurs to the surface of the carriageway, and no permanent residual marks r
28、emain after their removal. 6 Marking Each package containing black masking material shall be marked with the following information: a) a reference to this standard; b) the manufacturers name and trade name; c) the type of black masking material and whether removable or non-removable; d) the quantity
29、, size or shape; e) the batch number; f) the intended use and any limitations on use. Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 15:00:43 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 7962:2000 BSI 389 Chiswick High Road London W4 4AL BSI British Standards
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