AS9132 is a specification for the Direct Part Marking of aerospace components.
For a Data Matrix code marked on a component for identification purposes, the standard measures dot size, angle of distortion and dot centre offset. The standard generally just considers a Pass/Fail of the mark against the criteria.
- Dot size needs to be between 65% and 105%
- Dot centre offset needs to be within 0% and 20% of the ideal grid
- Angle of distortion up to 6 degrees variation on the L shaped finder pattern
A lot of aerospace OEMs and tier suppliers use this standard, although some have their own standards which are based on AS9132, for example Rolls-Royce standards JES131 and RRES90003.
A Useful Feedback Loop
AS9132 provides useful feedback as to why a Data Matrix code has failed a verification check.
When the Pryor verification software detects a failed code it will provide the user with a relevant list of things to check to correct the problem.
Some tips on how to achieve a Pass grade in AS9132 are given in this article.