Norm

NEN-ISO 13920-1:1994 Ontw. en

Lassen - Algemene toleranties voor gelaste constructies - Deel 1: Lengte- en hoekmaten

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Over deze norm

Status Ingetrokken
Aantal pagina's 7
Commissie Lassen en verwante processen
Gepubliceerd op 01-04-1994
Taal Engels
This standard is intended to simplify drawings. It specifies general tolerances for linear and angular dimensions of welded structures in four tolerance classes, these being based on customary workshop accuracy. The main criterion for the selection of a particular tolerance class should be the functional requirements which are to be met. If tighter tolerances are required, or if larger tolerances are both permissible and more economical, then they shall be indicated individually. General tolerances for linear and angular dimensions as specified in this standard apply for weldments, welding assemblies and welded structures when reference is made to this standard on drawings or related technical documents (e.g. delivery specifications) in accordance with clause 4. The general tolerances apply for linear dimensions, e.g. external dimensions, internal dimensions, offset dimensions, centre line distances, and for angular dimensions and in the latter case applying both for those that have been indicated in the drawing and those are generally not thus indicated, e.g. right angles, or the angles of regular polygons. special provisions may be needed for the linear dimensions of welded structures composed of a number of welding assemblies.

Details

ICS-code 25.160.01
Nederlandse titel Lassen - Algemene toleranties voor gelaste constructies - Deel 1: Lengte- en hoekmaten
Engelse titel Welding - General tolerances for welded constructions - Part 1: Dimensions for lengths and angles
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