Mil Std 105e
Mil Std 105e is an attribute sampling plan. The standard contains tables and reference material that you can use to plan and conduct inspection. The US military obsoleted this in February 1995. However ANSI / ASQ transferred the entire text to Z1.4 which is still available today.
Snap Sampling Plans!
- Inspect parts, items, material?
- Need an AQL sampling method that supports your inspection activities?
- Want to quickly apply the correct sampling method based on your production methods?
- Want to swiftly determine the correct sample size, accept and reject criteria for your inspection?
- Think statistical sampling plans are difficult, confusing or complicated?
- Need to check your company's sampling plans for the correct application?
- Make up your own sampling plans?
- Need to learn about a specific sampling plan because of your customer requirements?
- Want to improve your Quality Systems?
If you answer yes to any of the above questions then you need Snap Sampling Plans!
Many companies use the wrong inspection AQL sampling plan because managers, engineers, supervisors and inspectors have not been trained in statistical sampling. Because of this, they may create their own deficient sampling plan. Or they may use a known industry standard plan without fully understanding that standard’s purpose or methods. When this occurs, they put their business and their customers at risk. In addition they waste valuable inspection time and inspection cost. Don't let this happen to your business.
Snap Sampling Plans! software combines all the key industry standard attribute sampling plans into one place. Because there are over 10,000 sampling possibilities, you need this software to eliminate the confusion. Snap Sampling Plans! guides you in selecting the correct AQL sampling plan.
Snap Sampling Plans lets you eliminate the confusion between
- Continuous Production vs. Lot Inspection
- Zero Acceptance vs. Standard Acceptance Inspection
- Critical vs. Major vs. Minor Inspection
- Receiving vs In-Process vs. Final Inspection sampling
- Defect History vs. No Defect History Inspection
- Destructive Testing vs. Non Destructive Testing
- Different Inspection Levels
- Different Inspection Types
With Snap Sampling Plans!, you answer a few yes / no questions and then you provide your desired AQL and lot size. As you answer the questions, the software details advantages and disadvantages to your choices. Snap Sampling Plans! then produces one specific sampling plan that matches your specific needs.
For intermediate users, you can easily select your desired industry standard. Input your desired AQL and lot size. Instantly you have your sampling plan report with sample size, accept and reject criteria.
If you’re an advance user, you can compare the AQL sampling plans. Input your AQL and lot size, Snap Sampling Plans! provides the possible sampling plans from all of the included industry standards. This valuable tool lets you research, compare and select a plan that works best. With this tool you may decide to change your production method or inspection method to a better fit. With this info you can save your company significant money because it helps you design lean inspection and production.
Snap Sampling Plans! incorporates the attribute sampling standards from Mil Std 105 / Ansi Z1.4, Dodge Romig, Mil Std 1235, Schilling Zero Acceptance, and Squeglia Zero Acceptance Plans.
As a bonus, with purchase of the software, you will receive copies of the non copyrighted standards for your review. Linked instructions for purchasing the copyrighted standards are also included.
Your Satisfaction is Guaranteed.
Within 30 days, if you are not satisfied with Snap Sampling Plans!, I will refund your money.
Snap Sampling Plans! is only $49
(Created by Quality Assurance Solutions)
Many government specifications contain requirements to use Mil Std 105e during inspection. Since the military and other government agencies used Mil Std 105e for sampling plans, manufacturers decided to use this standard too.
Of all the possible Military and commercial sample plans, Mil Std 105e is the king. Although replaced by Z1.4, companies still invoke 105e in their inspection documents.
Mil Std 105e can be used to inspect AQLs down to .01 percent or higher. Do not use the standard to inspect product with quality levels in the ppm range.
Manufactures used the standard for inspection in many areas. Most of the time manufacturers use the standard for inspection of end items or Final Inspection. Other areas include receiving inspection, inprocess, product in storage, records, and administrative procedures. Auditors also used the standard to create sampling plans.
The standard is written for the inspection of lots or batches. These batches must be produced in a stable environment. The standard defines the batch or lot as a collection of units. The lot consist of product from the same type, class, composition, and size. It must be manufactured under the same conditions at the same time. Manufactures must positively identify the lots, keep the lots intact and stored in a suitable space.
How Doe the Standard Work?
- First you determine the lot size
- Then you determine the inspection level
- Then you review the table(s) in Mil Std 105e
- The table provides your sample size and accept and reject criteria
- You then select your sample from the lot
- Inspect the parts
- If you have less defects than the reject number you accept the lot. Else you reject the lot
Normal vs. Reduced vs. Tighten Inspection
Mil Std 105e includes tables for reduce inspection. Reduce inspection means you sample less parts during the inspection. To proceed with reduce inspection, you need to have 10 or more lots consecutively pass inspection. The total number of defects from those 10 lots must be less than specified in a table in the standard. In addition the production must be at a steady rate.
If you reject 2 out of 5 lots then you need to go to tighten inspection. Tighten inspection means you sample more parts during the inspection. To return back to normal inspection, 5 consecutive lots with tighten inspection sample size must pass inspection.
Mil Std 105e Inspection Levels
Level I. Select this level when inspecting minor features. Useful for features of minor importance. A minor defect will not prevent the part's usability for its intended purpose. It provides less protection to the customer. You will incur the least inspection costs with this plan.
Level II Select this level when inspecting features of major importance. A major defect is likely to result in failure when the part is used but it does not cause a hazardous or an unsafe condition. Compared to the other inspection levels, it has normal inspection costs and normal customer protection. When in doubt, start with this inspection level.
Level III. Select this level when inspecting features that could cause critical defects. A critical defect causes a hazardous or unsafe condition. This inspection level provides the best protection to the customer. When using this plan you will encounter the highest inspection costs.
S-1. Select this level when the act of inspection damages or destroys the inspection part. Use this inspection level only if the inspection costs are extremely severe to your company. It provides the lowest protection to your customer.
S-2. Select this level when the act of inspection damages or destroys the inspection part. Useful for features of minor importance. A minor defect will not prevent the parts usability for its intended purpose. It provides less protection to the customer. You will incur the least inspection costs with this plan.
S-3. Select this level when the act of inspection damages or destroys the inspection part. Useful for inspection of features with major importance. A major defect is likely to result in failure when the part is used but the failure does not cause hazardous or unsafe condition. When using this plan you will encounter lower inspection cost.
S-4. Select this level when the act of inspection damages or destroys the inspection part. Use this plan when inspecting features that could cause critical defects. Critical causes a hazardous or unsafe condition. When using this plan you will encounter lower inspection costs.
Get the Standard!
If you purchase Snap Sampling Plans!, Mil Std 105e is built into the software. You don’t need to worry about the tables and reading the standard. The software is easy to use and includes other sampling plans too! As a bonus, I include the complete Mil Std 105e document with the software download.
After reviewing this info on Mil Std 105e, see this for more on sample size calculator.
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