AS/NZS 2009:2002

1 - AS/NZS 2009:2002 GLASS BEADS FOR PAVEMENT-MARKING MATERIALS
4 - PREFACE
5 - CONTENTS
6 - 1 SCOPE
6 - 2 REFERENCED DOCUMENTS
6 - 3 DEFINITIONS
7 - 3.1 Beads
7 - 3.2 Type A beads (premix beads)
7 - 3.3 Type B beads (drop-on beads)
7 - 3.4 Type C beads (intermix beads)
7 - 3.5 Type D beads (large wet-weather beads)
7 - 4 MATERIALS OF MANUFACTURE
7 - 5 PROPERTIES
7 - 5.1 General
7 - 5.2 Freedom from foreign matter
7 - 5.3 Transparency
8 - 5.4 Size
8 - 5.5 Shape
8 - 5.5.1 General
9 - 5.5.2 Type B, C, and D beads
9 - 5.5.3 Type A beads
9 - 5.6 Freedom from colour
9 - 5.7 Water resistance
9 - 5.8 Flow properties
9 - 5.9 Adhesion coating
9 - 5.10 Refractive index
9 - 6 PACKAGING
9 - 6.1 General
10 - 6.2 Labelling
11 - APPENDIX A - MEANS OF DEMONSTRATING COMPLIANCE WITH THIS STANDARD
11 - A1 SCOPE
11 - A2 STATISTICAL SAMPLING
11 - A3 PRODUCT CERTIFICATION
11 - A4 SUPPLIER'S QUALITY MANAGEMENT SYSTEM
12 - A5 OTHER MEANS OF ASSESSMENT
13 - APPENDIX B - SAMPLING GUIDELINES
13 - B1 GENERAL
13 - B2 CONSIGNMENT SAMPLING-METHOD 1-SAMPLE DIVIDER
13 - B2.1 Principle
13 - B2.2 Apparatus
13 - B2.3 Procedure
14 - B3 METHOD 2 FOR OBTAINING A SAMPLE OF GLASS BEADS-PROBE (SAMPLE THIEF METHOD)
14 - B3.1 Scope
14 - B3.2 Equipment
14 - B3.3 Procedure
16 - B4 PREPARATION OF TEST SAMPLES
16 - B4.1 Principle
16 - B4.2 Apparatus
16 - B4.3 Procedure
17 - APPENDIX C - NOTES ON THE USE OF GLASS BEADS IN ROAD-MARKING
17 - C1 SCOPE
17 - C2 GENERAL
17 - C3 BEAD TYPES
17 - C3.1 Class A beads (premix)
17 - C3.2 Class B beads (drop-on)
17 - C3.3 Class C beads (intermix)
17 - C3.4 Class D beads (large wet-weather beads)
18 - C4 PROPERTIES
19 - APPENDIX D - DETERMINATION OF SIZE DISTRIBUTION OF GLASS BEADS
19 - D1 SCOPE
19 - D2 PRINCIPLE
19 - D3 APPARATUS
19 - D4 PROCEDURE
19 - D4.1 Mechanical sieve shaker method
20 - D4.2 Hand tap method
20 - D5 REPORT
21 - APPENDIX E - DETERMINATION OF ROUNDNESS OF GLASS BEADS BY ROLLING PERFORMANCE
21 - E1 SCOPE
21 - E2 PRINCIPLE
21 - E3 APPARATUS
22 - E4 PROCEDURE
23 - E5 REPORT
24 - APPENDIX F - EVALUATION OF SHAPE OF GLASS BEADS BY OPTICAL EXAMINATION
24 - F1 SCOPE
24 - F2 PRINCIPLE
24 - F3 APPARATUS
24 - F4 CLASSIFICATION
25 - F5 PROCEDURE
25 - F6 REPORT
26 - APPENDIX G - DETERMINATION OF COLOUR OF GLASS BEADS
26 - G1 SCOPE
26 - G2 PRINCIPLE
26 - G3 APPARATUS
26 - G4 PROCEDURE
27 - G5 REPORT
28 - APPENDIX H - DETERMINATION OF WATER RESISTANCE OF GLASS BEADS
28 - H1 SCOPE
28 - H2 PRINCIPLE
28 - H3 REAGENTS
28 - H3.1 General
28 - H3.2 Phenolphthalein indicator (10 g/L)
28 - H3.3 Standard hydrochloric acid (approx. 0.1 mol/L)
28 - H4 APPARATUS
29 - H5 PROCEDURE
30 - H6 REPORT
31 - APPENDIX I - DETERMINATION OF THE PRESENCE OF MOISTURE-PROOF COATINGS
31 - I1 SCOPE
31 - I2 PRINCIPLE
31 - I3 REAGENTS
31 - I4 APPARATUS
32 - I5 PROCEDURE
33 - I6 REPORT
34 - APPENDIX J - DETERMINATION OF REFRACTIVE INDEX OF GLASS BEADS
34 - J1 SCOPE
34 - J2 PRINCIPLE
34 - J3 APPARATUS
34 - J3.1 Becke line method
34 - J3.2 Rainbow method
35 - J4 PROCEDURE
35 - J4.1 General
35 - J4.2 Becke line method
35 - J4.3 Rainbow method
36 - J5 REPORT

Specifies materials and design requirements for silica glass beads with retroreflective properties, intended for use in pavement-marking materials. It applies to glass beads that are used to improve the visibility of pavement-marking materials by reflecting the headlight beams of vehicles under night-time conditions.

This Standard specifies material and design requirements for silica glass beads with retroreflective properties, which are intended for use in road-marking materials. It applies to glass beads intended to improve the visibility of road-marking materials by reflecting the headlight beams of vehicles under night-time conditions.NOTES: 1 Alternative methods of determining compliance with this Standard are given in Appendix A.2 Guidance on sampling is given in Appendix B.3 Additional information on the types of glass beads available for use with road-marking materials is given in Appendix C.

First published as AS E42-1967.
Revised and redesignated as AS 2009-1977.
Second edition 1991.
Jointly revised and designated as AS/NZS 2009:2002.