Requirements of BS 6262 Part 4
Four solutions to the problem of glazing 'critical locations'.
2.1 Safety Breakage
For doors and door side panels, the glazing shouldn't break, or should break safely in accordance with Class C of the Impact Test BS6206 (1981) if 900mm wide or less, or Class B if wider than 900mm. For other low level glazing the pane should comply with at least BS 6206 Class C. Use laminated, toughened glass, plastics glazing sheet, or wired glass with a plastic film applied so that the pane of glass with film meets BS 6206.
For unbacked mirror glazing accessible to impact from one side only, the pane should comply with BS 6206 Class C0 if equal or less than 900mm wide or Class B0 if wider than 900mm. Unbacked glazing either has no backing behind its entire area, or has backing which does not retain its integrity or is cracked or broken when tested as described in BS 7449 (1991):.
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