Am Fr., 25. Jan. 2019 um 10:55 Uhr schrieb Marc Gemis <marc.ge...@gmail.com >:
> Perhaps it's my fault, I just found > > DN = Diameter Nominal. The term Diameter Nominal refers to the > internaldiameter of a pipe. it refers to the nominal diameter, which corrisponds roughly to the internal diameter, but not exactly. You could look up the exact measurements in the standards which describe the thing, if you know which standard applies (for which use the pipe is standardized). In OSM we should use the term "nominal diameter" or "DN" and not "internal diameter", because this is easy to find out (is written on it). Cheers, Martin
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