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About This Item

 

Full Description

This British Standard specifies requirements for:

(1) Cast iron manhole covers, inspection covers and frames.
(2) Cast iron and cast steel road gully gratings, and cast iron gully covers and frames.

All current amendments available at time of purchase are included with the purchase of this document.
 

Document History

  1. BS 497:1967

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    Cast manhole covers, road gully gratings and frames for drainage purposes

    • Most Recent
  2. BS 497:1952


    Cast manhole covers, road gully gratings and frames for drainage purposes

    • Historical Version
  3. BS 497:1945


    Cast manhole covers, road gully gratings and frames for drainage purposes

    • Historical Version
  4. BS 497:1933


    Cast manhole covers and frames light

    • Historical Version