Standard to define extension spring tolerances
An
Institute Of Spring Technology product story
Edited by the Engineeringtalk editorial team
Mar 1, 2004
Following on from its work to standardise compression spring tolerances, the IST has now been commissioned to work on development of an international standard for extension spring tolerances.
The Institute of Spring Technology (IST) was commissioned by the European Spring Federation (ESF), Japanese Spring Manufacturers Association (JSMA) and Spring Manufacturers Institute of America (SMI) to develop the technical details for an International standard on compression spring tolerances.
IST was asked to use the current DIN2095 as a base and compare it to other standards around the world.
A report has been submitted to UNM (Union de Normalisation de la Mechanique) which has been commissioned to develop the ISO standard, based on questionnaires submitted to SMI, JMSA and the national associations of the ESF, which were collated and compared to generate a report showing the consensus of opinion on the technical details that were necessary for the proposed international standard.
Once again The Institute of Spring Technology (IST) has been commissioned to do a similar exercise for the development of an international standard for extension spring tolerances and a questionnaire has been based around an existing standard, which in this instance is DIN2097, in order to compare with other national standards.
This comparison should assist those who already know how well they can perform compared to their own national standard, they can then compare to the DIN2097 and to the other national standards.
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