BS 857(1967) : 1967
Current
The latest, up-to-date edition.
SPECIFICATION FOR SAFETY GLASS FOR LAND TRANSPORT
Hardcopy , PDF
English
01-01-1967
Co-operating organizations
Foreword
1 General clauses, and optical requirements for windscreens
1.1 Scope
1.2 Definitions and general requirements
1.3 Optical requirements
2 Requirements specific to toughened safety glass
2.1 Properties and quality
2.2 Thickness
2.3 Marking
2.4 Sampling and acceptance
2.5 Uniformity test
2.6 Fragmentation test
2.7 Visual transmission
3 Requirements specific to laminated safety glass
3.1 Properties and quality
3.2 Thickness
3.3 Marking
3.4 Sampling and acceptance
3.5 Light stability test
3.6 Boil test
3.7 Fracture and adhesion test
3.8 Impact test for high performance laminates
4 Requirements specific to toughened glass for use only in
railway rolling stock
4.1 General
4.2 Flatness
4.3 Tong marks
4.4 Light transmission
4.5 Assessment of visual appearance
Appendix A - Test for optical deviation
Appendix B - Test for distortion of vision
Appendix C - Test for visual transmission
Appendix D - Apparatus required for uniformity test
Appendix E - Notes on fragmentation test
Appendix F - Apparatus for fracture and adhesion test and impact
test
Appendix G - Optical characteristics of windscreens
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