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Application of Data Matrix Identification Symbols to Aerospace Parts Using Direct Part Marking Methods-Techniques

1. SCOPE
This handbook provides detailed guidance for using permanent direct part marking (DPM)
methods and techniques to apply Data Matrix identification symbols safely to products. This
handbook addresses symbol structure only as it relates to marking and reading limitations.
Technical specifications related to the Data Matrix symbol are found in Automated Identification
Manufacturers (AIM) International Incorporated technical specification, International
Symbology Specification — Data Matrix. Overall program/project requirements on the use of the
Data Matrix symbol, including symbol criteria, marking method selection, surface preparation,
and protective coating locations, and readability standards are contained in NASA-STD-6002,
Applying Data Matrix Identification Symbols on Aerospace Parts.
1.1 Purpose
The purpose of this document is to provide information supplementing NASA Standard 6002
regarding the format of dot matrix codes and means for applying them to surfaces.
1.2 Applicability
This handbook is applicable to engineering practices for applying Data Matrix identification
symbols to parts used in NASA programs/projects using DPM methods and techniques.
This handbook may be referenced in contract, program, and other Agency documents for
guidance. Individual portions of this handbook may be tailored (i.e., modified or deleted) by
contract or program specifications to meet specific program/project needs and constraints.
Tailoring must be formally documented and approved as part of program/proj ect requirements.
This handbook is to be used in new programs as well as those that are currently in the design
phase. Retrofit marking for hardware on existing programs is encouraged where feasible. The
portions of this document addressing the application of human-readable identification (HRI)
markings do not apply to retrofit marking programs. Materials degradation and hazard analyses
are conducted in NASA programs when it is assumed that a single HRI marking is to be applied
to each product. The application of an additional Data Matrix marking to these parts should be
reviewed to ensure that product integrity is not compromised.