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Standard [CURRENT]
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This standard applies in conjunction with DIN EN 124 and DIN 1229 for the summary of components for manhole tops of class B 125 with round or square frames for covering man entries and inspection chambers of drains and sewers. The manhole tops consist of frames and covers in accordance with DIN 4271-2. DIN 1221 applies for associated dirt traps.
This document replaces DIN 4271-1:1998-08 .