A German standard of the German Institute for Standardization () for manhole tops with vents, class B125 ()
From the standard overview: 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.
An example of a cover that carries the standard on the "ultimate manhole covers" site. From this lid the picture that appears in the general section was taken.
A German standard of the German Institute for Standardization (
) for manhole tops with vents, class B125 (
) 
) 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.
Germany (3)
Czech Republic (1)
Romania (1)
Possible Worlds Ltd. 
© 2017-2025