Copyright by the British Standards InstitutionMon Jul 24 14:07:47 2000

Copyright by the British Standards InstitutionMon Jul 24 14:08:02 2000

Copyright by the British Standards InstitutionMon Jul 24 14:08:02 2000

Copyright by the British Standards InstitutionMon Jul 24 14:08:03 2000

Copyright by the British Standards InstitutionMon Jul 24 14:08:04 2000

Copyright by the British Standards InstitutionMon Jul 24 14:08:05 2000

Copyright by the British Standards InstitutionMon Jul 24 14:08:06 2000

Copyright by the British Standards InstitutionMon Jul 24 14:08:06 2000

Copyright by the British Standards InstitutionMon Jul 24 14:08:07 2000

Copyright by the British Standards InstitutionMon Jul 24 14:08:08 2000

Copyright by the British Standards InstitutionMon Jul 24 14:08:08 2000

Copyright by the British Standards InstitutionMon Jul 24 14:08:09 2000

Copyright by the British Standards InstitutionMon Jul 24 14:08:10 2000

Copyright by the British Standards InstitutionMon Jul 24 14:08:10 2000