MIL-M-38510 J on Microcircuits recently validated

MIL-M-38510 Revision J, titled “Microcircuits, General Specification for,” was validated on 6/29/2011 with the release of Validation Notice 3.  The notice confirms that MIL-M-38510, Revision J with Amendment 1, is still valid for procurement by the U.S. Department of Defense.

The notice also reaffirms that the specification is inactive for new design.  This means that it can only be used for replacement (replenishment) purposes.

MIL-M-38510J establishes the general requirements for monolithic, multichip, and hybrid microcircuits.  It defines the quality and reliability assurance requirements which must be met in the acquisition of microcircuits.  Detail requirements, specific characteristics of microcircuits, and other details of microcircuits that are specific to particular uses are all addressed in what are called slash sheets.

The previous validation notice, Notice 2, released in March of 2001, defined the documents that should be used in lieu of MIL-M-38510 for new design.  The bulk of the specification is covered by MIL-PRF-38535.  However, some topics are addressed by MIL-STD-1835, MIL-HDBK-780 and MIL-HDBK-983, which has since been canceled without replacement.

FYI, a review of standards is often set to a regular schedule, such as the five year cycle set by ANSI, the American National Standards Institute.  When a review confirms that the document is still good without any further changes, a validation, reaffirmation, or reapproval notice may be issued.  It may be released as a stand-alone document, as with the DoD validation notices, or as a reprint with the reapproval date included, or just as a notation on a website or catalog.  When this occurs, the actual content of the document is unchanged.

MIL-M-38510, and all publicly available Military Specifications and Standards, can be purchased from Document Center Inc. at our website  You will get free update notification of all future changes to any purchases via our email notification service.  This means that you will always know when any standard you purchase from Document Center Inc. changes.  Get more information by phone (650-591-7600), fax (650-591-7617) or email (



Administrative Changes to Standards — What does it all mean?

One of our customers called today just to ask us what some of those odd changes to Standards actually mean.

Since purchasing standards can be expensive, it’s best to know what you’re going to be getting before you plunge ahead.  So let’s review some kinds of changes that can happen to standards and discuss if they should signal a buying opportunity for you or not.

First up: Reapproval, Reaffirmation and Validation.  All three terms mean the same thing — the standard has been reviewed and is still wonderful just the way it was.  If the standard’s still great, why issue this notice or republication?

For the folks who oversee standards, there is a need to prove to the public that the documents are being maintained.  So good standards practice suggests reviewing every standard you’re responsible for (caretaker of) every five years.  The issuing of a notice or the republication of a standard with a reapproval or reaffirmation date is a way to permanently confirm that good practices have been met.  And this periodic review is mandatory for compliance with the rules of  adoption for American National Standards Institute (ANSI) documents.

FYI:  The validation notice states that a document is still valid for U.S. Department of Defense (DOD) procurement.  It is issued by the DOD and reminds us that the mil-spec system is basically support for military purchases.

Next on the list: Editorial Changes.  Most notably used by ASTM International (formerly the American Society for Testing and Materials), an editorial change modifies the document but doesn’t affect the technical content.  You’ll see them as part of the  revision level information in the document number, i.e., ASTM-B899-09e1.  This is the document ASTM B899, 2009 Edition with 1 editorial change.

What could be an editorial change?  Perhaps an association was mentioned in the standard and the address of the association has changed.  Perhaps a phone number was included and the phone number has changed.  Remember, the change will not affect the technical content, so its going to be a non-essential piece of information.

How about a Non-Current or Inactive notification?  Both mean the same thing — The standard is good to use for replacement purposes but is not authorized for new design.  That is, if you have an existing product to maintain, it’s OK to use the standard.  But if you’re going to design something new, use something else.  With luck, the notification will point you to a replacement.  But not always…

A Cancellation Notices is another kind of notice that you may or may not need.  It will be issued for two reasons.  It presents an authorized notification that a standard has been withdrawn and is no longer valid.  And it may provide the caretaker with a way to direct users to a replacement document or to let them know the standard has no superseding document.

All of the changes above are primarily administrative in nature.  They do not make technical changes to the document.  Are they necessary to purchase?

My answer is always, “It depends on the situation.”  For reaffirmations, reapprovals and validations — not necessary unless you have an auditor coming in.  If you use the document for compliance, you’ll want every little thing every time.  If not, then these items are not so critical.

For editorial changes, it’s very much the same situation.  The information can certainly be useful, but if money’s tight it’s not essential.

Cancellation notices are often notated in databases and catalogs.  So unless you need a paper trail (or again, you’re getting audited), it may not be necessary.  But if you have a customer who thinks you should be using an obsolete document, then a cancellation notice or cancellation revision can support your case about as strongly as you would ever want!

There’s a couple more kinds of notices that do cause confusion.  The first is the technical corrigendum.  This is just a fancy name for a change notice.  Don’t let this one go by — It’s got corrections to the document that you will want to know about.  Errata are the same, document corrections that you need to have (usually printing errors to tell you the truth).

Amendments and change notices are in the same category but usually are longer and may offer new information to add to the standard.  Again, don’t leave home without it.

Do you have any questions about the many little things that can be called out to accompany a standard that you’re using or that you need?  Check in with us at Document Center ( by email at or give us a call at 650-591-7600.  We’ll be happy to answer your questions and perhaps it will even be included in this posting or a new one!