By: Id Integration
Submitted: 2009-06-02 03:06:11 | Word Count: 531
MIL-STD-130 N is the latest version of MIL-STD-130 and was released on 17th December 2007. The standard determines the quality of the UID marking of the items. As the items and the parts are required to be marked and labeled by the contractors and the sub-contractors, it is important that they should meet the standards of the MIL-STD-130 N. The change in the standard reflects in the definitions of the labels, their validation and verification. The new amendment doesn’t affect the interpretation of UID marking requirements. The UID coding requirements include labels, validation and verification.
According to MIL-STD-130 N, the definition of label is “An item marked with the identification information of another item and affixed to that other item. A label may be of any similar or different material than that of the item to which it is affixed. The standard allows the contractors to use metallic or non-metallic material to manufacture the UID labels. The contractors also need to affix the labels to the respective items by any appropriate means. UII of the item is the concatenated value derived from the UII data set that includes Construct #1, Construct #2 or the IUID equivalents. The data provided with the UID is limited to 50 characters. The changes in the section 3 is about the change in the definitions and the importance of the section lies in stating the responsibility of the contractors so that they can provide the UID labels that meets the required standards.
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The Detail Requirements of UID Marking for MIL-STD-130 N Standard
The standard has provided added guidance and clarification for the use of EID for the non-IUID items and use of batch or lot and serial number, original part number and PIN. The dimensional requirements have also been clarified in its Section 5.2.3.2, that stats that the larger size of the UID labels should not exceed 1 inch. However, the standard also allows contractual exceptions.
The Datamatrix barcode used for IUID marking is used in both square and rectangular format. For some products, square marking fits best and for others it is the rectangular marking. The section 5.2.3.2 of the MIL-STD-130 N standard states that the longest side of the UID marks in the rectangular form should not exceed 1 inch.
The conformance with the required standard of UID marking is based on a sampling plan. The standard requires that the marking conformance should include validation and verification of mark content and quality.
The approved verification and validation of the datamarix symbol quality may be used at the supplier’s options. It is applicable for all marking procedures.
The improved verification method of AIM DPM standard is a significant change introduced to the MIL-STD-130.
The ISO/IEC 15415 is still being used by the contractors for label verification as it the changed standard allows it.
The standard set by MIL-STD-130 N is essential for the contractors to follow. Often the reason of rejection UID labeling is due to the incapability of the contractors to assure that the UID markings and labels are according to the standard. Hence, it is also required that the contractors should know the UID marking Standards of MIL-STD-130 N.
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