BS AU 145e:2018 – TC:2020 Edition
$186.33
Tracked Changes. Specification for retroreflecting number plates
| Published By | Publication Date | Number of Pages |
| BSI | 2020 | 78 |
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 51 | Foreword |
| 53 | 1 Scope 2 Normative references 3 Terms and definitions |
| 55 | 4 Marking and design 4.1 Marking 4.2 Design 4.3 Fixing instructions 5 Performance of background and characters 5.1 Background 5.2 Characters |
| 56 | 5.3 Contrast in NIR between characters and background 6 Testing Table 1 — Test schedules |
| 57 | Figure 1 — Dimensions and layout of sample unit required for testing 7 Colorimetry Table 2 — Daylight chromaticity and luminance factor limits |
| 58 | 8 Visible light retroreflection Table 3 — Minimum coefficient of retroreflection, RA, of the retroreflective background |
| 59 | Figure 2 — Arrangement of apparatus for measuring the coefficient of retroreflection |
| 60 | 9 Resistance to bending Figure 3 — Number plate bend test arrangement 10 Resistance to solvents |
| 61 | 11 Thermal resistance 12 Resistance to impact 13 Resistance to abrasion |
| 62 | 14 Resistance to corrosion 15 Resistance to weathering 15.1 General 15.2 Visual appearance 15.3 Colour fastness 15.4 Coefficient of retroreflection 15.5 Effect of dirt |
| 63 | Figure 4 — Test arrangements for measurement of the coefficient of retroreflection of wet specimens |
| 64 | Annex A (informative) Adhesive attachment of number plates |
| 66 | Annex B (informative) Guidance for drilling through number plates |
| 67 | Annex C (normative) Determining effective contrast in the infrared spectrum between characters and retroreflective background |
| 69 | Figure C.1 — Infrared image of plate sample and resultant contrast histogram Table C.1 — Tabulation of test reports |
| 70 | Annex D (normative) Method of test for impact resistance Figure D.1 — Apparatus for impact resistance test |
| 71 | Figure D.2 — Number plate holding fixture |
| 73 | Annex E (normative) Method of test for thermal resistance Figure E.1 — Sample support stand for thermal resistance test |
| 74 | Annex F (normative) Method and apparatus for accelerated artificial weathering tests Table F.1 — Temperature |
| 75 | Annex G (normative) Procedure for preparing a dirty number plate for test purposes |
| 76 | Bibliography |
