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1、BRITISH STANDARD BS 873-1:1983 Road traffic signs and internally illuminated bollards Part 1: Methods of test UDC 625.745.5/.6:628.975:656.055.969 Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 06:11:51 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 873-1:1983 T
2、his British Standard, having been prepared under the direction of the Road Engineering Standards Committee, was published under the authority of the Board of BSI and comes into effect on 31 January 1983 BSI 02-1999 The following BSI references relate to the work on this standard: Committee reference
3、 RDB/6 Drafts for comment 78/14585 DC 78/12447 DC ISBN 0 580 13049 5 Cooperating organizations The Road Engineering Standards Committee, under whose direction this British Standard was prepared, consists of representatives from the following: The organizations marked with an asterisk in the above li
4、st, together with the following, were directly represented on the Technical Committee entrusted with the preparation of this British Standard: Asphalt and Coated Macadam AssociationGreater London Council Association of Consulting EngineersInstitute of Petroleum British Quarrying and Slag Federation*
5、Institute of Quarrying British Tar Industry AssociationInstitution of Civil Engineers* Cement and Concrete AssociationInstitution of Highway Engineers* Concrete Society LimitedInstitution of Municipal Engineers* Contractors Plant AssociationInstitution of Structural Engineers Convention of Scottish
6、Local AuthoritiesMinistry of Defence County Surveyors Society*Refined Bitumen Association Ltd. Department of the Environment (PSA)Road Emulsion Association Ltd. Department of the EnvironmentRoad Surface Dressing Association (Transport and Road Research Laboratory)Sand and Gravel Association Limited
7、Department of Transport*Society of Chemical Industry Federation of Civil Engineering ContractorsTrades Union Congress Federation of Manufacturers of Construction Equipment and Cranes Aluminium FederationElectricity Supply Industry in England and Association of Public Lighting EngineersWales Associat
8、ion of Road Traffic Sign MakersFibre Building Board Development British Electrical and Allied ManufacturersOrganization Ltd. Association (BEAMA)Lighting Industry Federation Ltd. British Plastics FederationPaint Research Association British Precast Concrete Federation Ltd.Post Office British Rubber M
9、anufacturers AssociationRetroreflective Equipment Manufacturers British Sign AssociationAssociation British Steel IndustryVitreous Enamel Development Council Chartered Institution of Building ServicesCoopted members Confederation of British Road Passenger Transport Amendments issued since publicatio
10、n Amd. No.Date of issueComments Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 06:11:51 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 873-1:1983 BSI 02-1999i Contents Page Cooperating organizationsInside front cover Forewordii 1Scope1 2Definitions1 3Test sample
11、s of sign face sheet materials or sign face materials2 4Photometric properties2 5Measurement of coefficient of retroreflection (R9) 3 6Colorimetric properties5 7Impact resistance5 8Wind resistance5 9Resistance to twisting9 10Strength of bond between sign face sheet material and sign plate material9
12、11Strength of bond between sign faces and solid glass beads9 12Resistance to solvents10 13Corrosion resistance to saline solution10 14Corrosion resistance to sulphur dioxide11 15Resistance to weathering11 16Measurement of coefficient of retroreflection of wet retroreflective signs after exposure15 1
13、7Measurement of coefficient of retroreflection of dirty retroreflective signs after exposure15 Appendix A Relationship between the Regulations, the Traffic Signs Manual and BS 87317 Figure 1 Areas for determining luminance gradient3 Figure 2 Plan of arrangement of apparatus for measuring the coeffic
14、ient of retroreflection4 Figure 3 Arrangement of apparatus for measurement of resistance to impact of internally illuminated sign panel and luminaire face panel materials6 Figure 4 Arrangement of apparatus for measurement of resistance to impact of non-internally illuminated sign plate material7 Fig
15、ure 5 Assembly of specimens for bond strength test (sheet materials)10 Figure 6 Arrangement for testing bond strength of solid glass beads11 Figure 7 Apparatus for sulphur dioxide test12 Figure 8 Apparatus for accelerated weathering test13 Figure 9 Typical arrangement of atomizers as used in acceler
16、ated weathering test14 Figure 10 Test arrangements for measurement of coefficient of retroreflection of wet retroreflective samples16 Table 1 Impact tests8 Publications referred toInside back cover Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 06:11:51 GMT+00:
17、00 2006, Uncontrolled Copy, (c) BSI BS 873-1:1983 ii BSI 02-1999 Foreword This British Standard has been prepared under the direction of the Road Engineering Standards Committee. BS 873 was first published in 1939 in response to a request from the Association of Road Traffic Sign Makers, and was rev
18、ised in 1959 and 1970. As a result of subsequent experience and the advent of new materials and methods of construction, it is being further revised to bring it up-to-date. This process will continue in future revisions. A sign normally consists of a legend carried by a sign face which may be of she
19、et or other applied material (e.g. paint or print) mounted on a substrate and fixed to a frame and supported by a post or posts. Other types of signs (e.g. traffic cones) may be of more simple construction and self supporting. Requirements for the various elements and signs are laid down in the furt
20、her Parts of this British Standard, which generally refer back to the test methods described in this Part. The revised standard is being published in the following separate Parts, relating to the various aspects of road traffic signs and internally illuminated bollards which are considered to be sui
21、table for standardization. Part 1: Methods of test. This describes test procedures for signs and components specified in the other Parts. Definitions of terms used in all Parts are included, together with guidance on the relationship between BS 873 and the various statutory provisions; Part 2: Speci
22、fication for miscellaneous traffic signs. This specifies the requirements for miscellaneous road traffic signs such as portable signs, flap signs, hazard markers, cones, cylinders, crossing and refuge beacons; Part 3: Specification for internally illuminated bollards. This specifies the requirements
23、 for single- and multi-aspect bollards both partially and totally illuminated, but excluding the spring-back type; Part 4: Specification for road studs. This specifies the requirements for both reflecting and non-reflecting road studs either bonded to or anchored within the road surface; Part 5: Spe
24、cification for internally illuminated signs and external lighting luminaires. This specifies luminance requirements in addition to constructional and electrical requirements; Part 6: Specification for retroreflective and non-retroreflective signs. This specifies photometric and colorimetric requirem
25、ents in addition to constructional details for sign plates and frames. Material finishes are also specified; Part 7: Specification for posts and fittings. This specifies the requirements for posts and fittings for all types of signs (excluding plates and plate frames), and luminaires. Parts 1, 5, 6
26、and 7 were previously all combined in BS 873-1:1970. The new division of subjects is as follows: Part 1: previously clause 1 and all appendices; Part 5: previously clauses 2 and 4; Part 6: previously clause 3; Part 7: previously clause 5. Licensed Copy: London South Bank University, London South Ban
27、k University, Fri Dec 08 06:11:51 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 873-1:1983 BSI 02-1999iii BS 873-1:1970 has been renumbered as BS 873-7 and superseded clauses have been deleted by amendment. However, BS 873-7 is in course of revision. The previous clause 6 of BS 873-1:1970 is now inc
28、orporated as appropriate into the various Parts of the revised standard. The Committee reconsidered the need for requirements for resistance to abrasion and concluded that, while perhaps desirable, it was not practicable to establish suitable conditions of test bearing in mind the wide variety of fi
29、nishes available within the specification. Experience had indicated there was no need for signs of greater strength and no fundamental changes were thought necessary as regards thickness of sheet sign plate materials. Corrosion is not a problem if sign plates are protected in accordance with this sp
30、ecification. Many of the components used in the construction of road traffic signs are not designed specifically for that purpose, and for any one sign they may be purchased from a number of different suppliers. For this reason this standard emphasizes the need to ensure that the various materials a
31、re comptaible when brought together in the finished product. This includes the avoidance of corrosion at bimetallic contacts. Some of the tests described in this standard are such as to necessitate a programme of routine sampling. Such a procedure should be agreed between the purchaser and manufactu
32、rer at the time of ordering. Attention is drawn to BS 2635, BS 6000, BS 6001 and BS 6002. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not o
33、f itself confer immunity from legal obligations. In particular, attention is drawn to the following (see Appendix A). The Traffic Signs Regulations and General Directions The Traffic Signs (Speed Limits) Regulations and General Directions The Pedestrian Crossing Regulations Summary of pages This doc
34、ument comprises a front cover, an inside front cover, pages i to iv, pages 1 to 18, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Licensed C
35、opy: London South Bank University, London South Bank University, Fri Dec 08 06:11:51 GMT+00:00 2006, Uncontrolled Copy, (c) BSI iv blank Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 06:11:51 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 873-1:1983 BSI 02-1999
36、1 1 Scope The Part of BS 873 defines general terms and describes photometric tests for internally and externally illuminated signs and for the coefficient of retroreflection for retroreflective materials. It also describes the methods of testing signs and luminaires or their components for resistanc
37、e to impact, wind pressure, dirt and corrosion. Tests for bonding sheet sign face materials and for the efficiency of bond of superimposed solid glass beads are also described. NOTE 1Additional methods of test are described in other Parts of this standard. NOTE 2The titles of the standards publicati
38、ons referred to in this standard are listed on the inside back cover. 2 Definitions For the purposes of this Part of BS 873 the following definitions apply. 2.1 Bollards 2.1.1 bollard a device placed on a refuge or traffic island to warn drivers of those obstructions. It may contain a prescribed tra
39、ffic sign 2.1.2 base that part of a bollard that is fixed to the refuge or traffic island by means of holding-down bolts and in which the incoming electrical supply is terminated 2.1.3 body that part of a bollard situated below the head NOTEThe head and the body may be combined into one structure. 2
40、.1.4 depth of body the horizontal dimension of the body on the side or sides of the bollard having no sign or plain white circle 2.1.5 head that part of the bollard containing the sign 2.1.6 housing the structural part of the bollard 2.1.7 manufacturers stated ground line the horizontal line marked
41、on the bollard that should be level with the surrounding surface of the refuge or traffic island when the bollard has been correctly installed 2.1.8 one-aspect bollard a bollard designed to display a sign or a plain white circle in one direction only 2.1.9 width of body the horizontal dimention of t
42、he body on the side or sides of the bollard having a sign or plain white circle 2.2 entrance angle an angle characterizing the angular position of a retroreflector with respect to the direction of its illumination NOTEFor test purposes it is the angle between the projectors beam and a line normal to
43、 the test surface where the projector, receiver and the line normal to the test surface are all contained within a common horizontal plane (see 5.3). The angle is positive if the line normal to the test surface lies to the right of the projector beam; otherwise it is negative. 2.3 hazard marker a re
44、troreflector erected at the edge of a carriageway to indicate a hazard or the alignment of a carriageway 2.4 luminaire face panel the light transmitting part of the luminaire, i.e. the lighting cover as defined in BS 4533-1.1 2.5 Luminance 2.5.1 luminance see BS 4727-4:Group 01 2.5.2 mean luminance
45、the arithmetic mean of the luminance values of all points in the inner area of the sign face (see 4.3) 2.6 observation angle the angle by which the direction of observation of a retroreflector departs from the direction of its illumination NOTEFor test purposes it is the angle between the projectors
46、 beam and the return beam to the receiver where the projector and receiver are in the same horizontal plane and the test surface is vertical (see 5.3). Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 06:11:51 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 873-1:1
47、983 2 BSI 02-1999 2.7 retroreflector1) a material or device capable of reflecting light in the general direction of the light source 2.8 Road studs 2.8.1 anchorage that part of a road stud that is below the road surface when the road stud is fixed in position in the road 2.8.2 head that part of a ro
48、ad stud that is above the road surface when the road stud is fixed in position in the road 2.8.3 non-reflecting road stud a device that is bonded to or anchored within the road surface in order to warn, guide or inform road users 2.8.4 reflecting road stud a device that is bonded to or anchored with
49、in the road surface in order to warn, guide or inform road users. It reflects incident light in directions close to the direction from which it came. The reflecting portion may be either depressible or non-depressible and the stud may be constructed in either one or more integral parts 2.8.5 upper surface that part of the external surface of a road stud that is visible when the road stud is fixed in position in the road 2.9 sign face that part of a sign that bears the legend and/or symbols, background and border 2.10 sign face mat
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