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Mil Std 810f Pdf

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As per UID compliance, product identification marking is mandatory inthe aerospace, automotive, and defence industries to identify and traceproducts in the manufacturing process. The US Department of Defence has setcertain standards to ensure that these marks are strictly complied with andmandated as per the UID compliance. Onesuch standard is MIL-STD-130. Accordingto the MIL-STD-130 standard, contractors supplying military products arerequired to have an acquisition value greater than $5000 or any missioncritical or serialized product component are mandated to mark their productswith a specially formatted machine readable 2-D Data Matrix bar code.

The 2-D Data Matrix code ensures that products having this UIDcompliance code are validated, readable and formatted correctly. ATwo-dimensional Data Matrix code usually contains a manufacturer serial number,identification number, and the serialized part number of the product. These codes are placed on the manufacturingproducts in several ways such as dot peening, ink jet, laser etching or eventhrough chemical etching. The 2-D Data Matrix prevents codes being misread andprovides higher density of data storage. As this is an open architecture code,the encoding algorithms are freely available for all manufactures.

However certain loopholes wereobserved in the MIL-STD-130 standard. For example, it was scrutinized that aflat laser-marked metallic part can be read easily by using on-axisillumination, but it could be a problem to verify other marks using theequivalent illumination. The problem was solved in the latest version of thestandard, MIL-STD-130N. This new standard, approved for use by all Departmentand agencies of the Department of Defence (DoD) was released on December 17th,2007. According to this new MIL-STD-130N standard, a number of differentlighting methods are mandated to be used for quality checking of direct partmarks. Defence contractors are also required to follow specific mark qualitymeasures when delivering parts to the government.

Several lighting conditions and mark-quality measures are to be verifiedin the new MIL-STD-130N standard .Ten types of lighting using red 650 ?20-nmLEDs are specified as per the latest MIL-STD-130N standard. Besides this, the2-D Data Matrix code must be verified according to the cell contrast, cellmodulation, reference decode, print growth, unused error correction, minimumreflectance, axial non-uniformity, grid non-uniformity, fixed pattern damage,and cell size.

As per the UID compliance, here is a brief summary of some of thechanges in the MIL-STD-130N standard.

According to changes in section 3, an item marked with theidentification information of another item can be affixed to the other item.However, the label or nameplate which is affixed to a particular item can be ofsimilar or different material than that of the item.

The changes in section 4 emphasizes that the UID compliance markingmethod ought to be permanent. As per the new MIL-STD-130N standard, the markingmethod should ensure to withstand the environmental changes and any specificrebuild processes. However, all existing marked products aren't subjected toretest just because this MRI requirement clause is added now in the newstandard. The retest can only require when insuring with the UID compliancewith section 4.5.

Mil Std 810f Pdf

MIL-STD-130N:

MIL-STD-130N is the most recent version ofMIL-STD-130 (with version N) which was released on 17th December, 2007. The amendmentshall not affect the interpretation of different UID coding requirements suchas labels, validation and verification. The new MIL-STD-130N standard definesLabel as ?An item marked with the identification information of another itemand affixed to that other item. A label may be of any similar or differentmaterial than that of the item to which it is affixed.? This basically meansthat a label (data plate, name plate, ID plate, etc) can now be made of ametallic or non-metallic material. Further, the labels can be affixed to theidentified item by any proper means. As per the MIL-STD-130N, the UID will nowbe limited to 50 characters only.

MIL-STD-130L:

MIL-STD-130L is the most fundamental itemidentification marking standard by which marking requirements for differentproducts can be designed during design activity. The Department of Defense usesMIL-STD-130L as a standard model mainly for acquisition of military material. Moreover,MIL-STD-130L is also used by other government agencies for conducting similaractivities. In fact, MIL-STD-130L standard is being widely used in thenon-government industries for developing company specific marking guidance fortheir items. MIL-STD-130L is the latest edition (revision L) incorporates andimplements the DoD Unique Identification (UID) policy issued 29th July, 2003.The most recent edition also applies to the area of machine-readable marking byoffering a comprehensive guidance as this technology standard continues todevelop beyond commonly recognized bar code protocols.

The new UID standard MIL-STD-130N has alsomodified the definition of Validation as follows: ?Confirmation by examinationand provisions of objective evidence that the particular requirements for aspecific intended use have been fulfilled; that all requirements have beenimplemented correctly and completely and are traceable to system requirements.?

Moreover,the MIL-STD-130N defines Verification as follows: ?Confirmation by examination,and provisions of objective evidence, that the item identification markingrequirements specified in this standard and the associated contract have beenfulfilled.?

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