MIL-STD-105D & MIL-STD-105E Differences

[Link Xue]

Could anybody tell me the what the difference is between MIL-STD-105 D & MIL-STD-105 E? Thank you very much.

Regards,
Link

[Link Xue]

As I know, MIL-STD-105D was revised to MIL-STD-105E May 1989 and MIL-STD-105E was canceled Feb. 1995. The replacement is ANSI/ASQC Z1.4

[Wes Bucey]

Originally Posted by Link Xue

As I know, 105D was revised to 105E May 1989 and was canceled Feb. 1995. The replacement is ANSI/ASQC Z1.4

I no longer have a copy of 105E on my bookshelf. As I recall, there was an entire section which discussed the changes from 105D. Ergo, if you have a complete copy of 105E, you have a transcript of the changes.

Now that you've raised the question, WHY do you want this information? Is it a crucial project or idle curiosity? If it's crucial, some of our Covers might go out to the garage or wherever they keep all the old paraphernalia of their careers and dig out a copy of each.

[Mike S.]

Link,

The E revision does not identify changes from the D revision other than to say they did not use asteriks to identify changes in the E revision due to the "extensiveness" of the changes, so there must be a good many changes. I have a .pdf copy of the E revision if that will help you -- maybe someone else has the D revision, but it willprobably be a big task to compare them side-by-side.

[Graeme]

Originally Posted by Link Xue

Could anybody tell me the what the difference is between MIL-STD-105D & MIL-STD-105D E? Thank you very much.

Regards,
Link

MIL-STD-105E (10 MAY 1989) paragraph 6.3 says:

Originally Posted by MIL-STD-105E

6.3 Changes from previous issue. Vertical lines or asterisks are not used in this revision to identify changes with respect to the previous issue due to the extensiveness of the changes.

As you and others have noted, this standard was canceled in February 1997 and replaced by ANSI/ASQC Z1.4-1993, Sampling Procedures and Tables for Inspection by Attributes. (This is now ANSI/ASQ Z1.4-2003, which can be puchased from ASQ.)

The 1997 cancellation was itself revised in March 2001 by cancellation notice 2. That one says that 105E is canceled without replacement. It also says that new Department of Defense aquisitions should consider the use of MIL-STD-1916 (1 APRIL 1996), DOD Preferred Methods for Acceptance of Products. The emphasis of this standard appears to be on process control and quality management systems - consider that the ISO 9000 series standards are referenced in it. There is a grossly simplified version of Z1.4 sampling tables and explanations but it is not the principal emphasis. For example, here are paragraphs 6 and 7 of the Foreword (emphasis added):

Originally Posted by MIL-STD-1916

6. Sampling inspection by itself is an inefficient industrial practice for demonstrating conformance to the requirements of a contract and its technical data package. The application of acceptance sampling plans involves both consumer and producer risks; and increased sampling is one way of reducing these risks, but it also increases costs. Suppliers can reduce risks by employing efficient processes with appropriate process controls. To the extent that such practices are employed and effective, risk is controlled and, consquently, inspection and testing can be reduced.
7. The following points provide the basis for this standard:
a. Contractors are required to submit deliverables that conform to requirements and to generate and maintain sufficient evidence of conformance.
b. Contractors are responsible for establishing their own manufacturing and process controls to produce results in accordance with requirements.
c. Contractors are expected to use recognized prevention practices such as process controls and statistical techniques.

That sounds a lot like the modern concept of a quality management system, doesn't it. It's certainly not the military acquisition system I was part of for many years ... at least until Secretary Perry started shaking things up.

Most US Department of Defense standards and specifications (including canceled ones) are available online through the Document Automation and Production Service (DAPS) in Philadelphia. Before you can access the system, you have to complete an online registration form and wait up to a few days for approval. The main documents that are visible but not available are DOD-adoped commercial standards - such as ANSI/ASQ Z1.4-2003. As always, since commercial standards are copyrioghted intellectual property they have to be purchased through the approriate sources.

[Al Rosen]

For anybody interested in making the comparison, I can e-mail each standard. They are about 2.9MB each (too large to post). I also have mil-std-1916 that superseded 105E and the corresponding handbook. They are somewhat smaller. Send me a PM or e-mail if you want any of the docs.

[Wes Bucey]

Originally Posted by Al Rosen

For anybody interested in making the comparison, I can e-mail each standard. They are about 2.9MB each (too large to post). I also have mil-std-1916 that superseded 105E and the corresponding handbook. They are somewhat smaller. Send me a PM or e-mail if you want any of the docs.

For those of you who are "lazy" like me, one of my staff pointed me to the following:

Statistical Quality Control Online Calculators
Everybody knows quality control is important. Here at SQC Online we use the power of the Internet to help you apply statistical tools in your own work environment. And it's all free!

Tables and Standards
Do you need to assure the quality of products delivered to you in batches? Many standard-setting organizations adopted the Military Standard Tables for sampling inspection.
Below are online versions of Military Standard Tables (equivalent to the civilian ANSI/ASQC standards).
You can find out how many items to sample, and how to decide if your goods are up to your specs. More about acceptance sampling
Table What is it for? Civilian Counterpart
Military Standard 105E Sampling plans for attribute data [civ. equiv.] ANSI/ASQC Z1.4, ISO 2859
Military Standard 414 Sampling plans for measurement data [civ. equiv.] ANSI/ASQC Z1.9
Military Standard 1235C Sampling inspection plans for continuous production, [civ. equiv.] Procedure CSP-1

Essentially, you can just plug in the numbers (batch size, Inspection level, AQL, etc.) and you are saved the effort of looking them up in a table and ruining your eyes on the tiny print, hoping you got the right line.

Still - WHY does Link Xue want to know the difference? Graeme is correct in that "modern" usage is away from sampling plans, but some folks like them as a failsafe to assure their SPC and preventive measures are working or to check up on their other methods from time to time. They are also a good way to check a suspect batch received from a supplier.

[Link Xue]

My idle curiosity is satisfied by you all detailed explanations.