British Standards Document
BS 6717
Precast, unreinforced concrete paving blocks. Requirements and test methods
https://doi.org/10.3403/02338191U
BS 6717 is maintained by B/507. The current release of this standard is:
BS 6717:2001 Precast, unreinforced concrete paving blocks. Requirements and test methods
https://doi.org/10.3403/02338191 (published 15/08/2001)
This standard is available from the following sources:
Other historical versions of this standard document also exist: