Tuesday 24 April 2012

New ISO 1101:2012

ISO have just published the new version of ISO 1101, the geometrical tolerancing standard.  The BSI implementation, which will be called BS EN ISO 1101, will appear shortly.

The new standard is mainly concerned with ensuring that all geometrical tolerancing requirements can be applied to 3D CAD models as well as to 2D engineering drawings. Although most of the 2D annotation can already be applied directly to a 3D model without any change of notation or meaning, this is not true of all of it. The standard now includes some additional 3D annotation elements, such as annotation planes and orientation planes, to ensure that all requirements can be fully implemented in a 3D environment.

The new revision also includes some minor changes and clarifications to the wording of the standard, as well as some new functionality.  The use of projected tolerance zones is now incorporated into ISO 1101, instead of a separate standard (ISO 10578), and there is now provision for unilateral and unequal bi-lateral tolerance zones with profile tolerances, using a new UZ modifier.
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2 comments:

  1. Anonymous19 September 2012 at 08:19

    DO you know when the CD version of BS8888:2011 will be available? Will it include the BS version of ISO 1101:2012?

    Thanks

    David Brand

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  2. Iain Macleod19 September 2012 at 23:48

    Hi David,

    The CD version of BS 8888:2011 should have been out a month ago. There have been some delays at BSI, but if it is not available now, it should be within a matter of days. BSI told me that it would be available by late August last time I enquired.

    Unfortunately, the CD will have the previous version of ISO 1101. ISO 1101:2012 has been available from ISO since April, and you can buy it direct from them. It is now going through the process of becoming a EU standard as EN ISO 1101:2012. This process seems to be excessively slow, and to have become much slower in the last year, so it is not expected to emerge as EN ISO 1101:2012 until around December. BSI will only then adopt it as a British standard, so BS EN ISO 1101:2012 will appear very late in 2012 or early in 2013. Due to copyright issues, BSI cannot publish it until it until it becomes a BS standard.

    I'm putting up a post about this shortly.

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