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Tolerances for ISO 13920 when not specified in the drawings.

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D41

Mechanical
Sep 18, 2018
1
I ask for guidance regarding the tolerances according to ISO 13920. We received drawings for water tanks from the client.
According to the ISO 13920 the tolerance class from A to D should be specify on the drawing but it's not. However for ISO 2768 they added- mK ( medium so no issues there). Can someone tell my if there is a default tolerance in this case?
Thank YOU very much.

 
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No.
The drawing is incomplete. Call your customer and ask for a revision.
 
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