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What is the MIL-STD-105E MIL-STD-105E is a sample of U.S. military standards, is the world's most popular sampling standard (1989 Published on May 10), is the latest version of 105D (U.S. military standard MIL-STD-105D is used to adjust the earlier type of sampling criteria, the adjustment is the most widely used type of sampling criteria. It is by Columbia University in 1945 Statistics Study Group for the U.S. Navy to develop a sample checklist.)
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MIL-STD-105E count of the historical background of the standard sampling procedure was developed during World War II out. The most primitive version called JAN-STD-l05 (full name jointarmy-navystandardl05), system design is completed in 1949. In 1950, JAN-STD-l05 was revised to MIL-STD-l05A.
followed in 1958,1961 and 1963, introducing the MIL-STD-l05B, MIL-STD-105C and MlL-STD-l05D. In 1964, the United States, Britain and Canada, three countries revised MIL-STD-105D, called the ABC-STD-l05 (Note: ABC on behalf of America, Britain and Canada). MIL-STD-l05D civil version was launched in 1971 by the American National Standards Institute (AmericanNationalStandardInstitute, ANSI) to include the American National Standards. Called ANSI/ASQCZ1.4
nearest revision is ANSI/ASQCZ1.41981. In 1974, the International Organization for Standardization (InternationalOrganizationforStandardization, ISO) will ANSI/ASQCZ1.4 slightly amended, be incorporated as ISO2859.
China National Bureau of Standards published in 1970,
burberry leather handbags, and Japanese national standard CNS2779 JISZ9015 national standards, with the MIL-STD-l05 standard similar. Currently the latest version of l0 to May 1989, the U.S. military Research and Development Engineering Center announced the MIL-STD-l05E. 105E 105D version similar to the past, only to be revised in the text of a separate arrangement. MIL-STD-105E is the acceptance quality level (acceptablequalitylevel, called AQL)-based sampling program. AQL is the buyer acceptable quality standards. Based on the AQL inspection plan, the lot is clearly rejected or acceptance, does not include sorting test. While sorting test can reduce the failure rate of shipment, but must pay the additional cost of testing!
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MIL-STD-105E sampling plan MIL-STD-105E Introduction to the AQL and the sample on behalf of the word
MIL-STD-105E AQL look-up table is required prior to determining the value of
MIL-STD-105E to the producer risk (α) fixed at 0.01 to 0.10 between the AQL
serious general most of the failed projects is set at 0.1% or less than 0.1%, mainly general most of the failed projects of the AQL is set at 1.0% or 0.65%, the secondary does not generally most of the eligible project of the AQL is set at 2.5% or 4.0%
MIL-STD-105E test sample on behalf of the word is determined by the level and volume
MIL-STD-105E test standards will be divided into special and general inspection level two types of standard tests of special significance level
can be divided into S-1, S-2, S-3 and S-4 IV, the general test standards can be divided into I, II and III levels, and its consumers
protection in ascending order of sample size sampling plan is also required in ascending order of level of decision
test can be regarded as the sample size is a safeguard for consumers to strike a balance of risks between the process of
when the cost of a single test or the consumer can tolerate higher degree of risk, often considered a special test level
when the cost per test is low, or consumers can not tolerate risk, often considered the general test Most products are made of standard
general inspection standards, in particular, is known as the normal inspection level II standard of the most commonly used in other conditions
under the same test level III, II and I needed a sample size of about 4 : 2:1
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MIL-STD-105E of the use of MIL-STD-lO5E provides three sample types: single sampling, double sampling and multiple sampling times.
Each sampling plan can be divided into normal inspection (normalinspection), tightened inspection (tightenedinspection) and the reduction test (reducedinspection). The beginning of the sampling plan, normal inspection is usually the first use, unless otherwise specified. Tightened inspection is variation in the quality of the time when the seller, while the reduction test is used in good condition the quality of the seller. AQL are usually set in the contract,
prada handbags, or specified by the responsible authorities. Different failure points, or defective products can use different AQL values. In MIL-STD-lO5E, the sample size and inspection by the standards of the batch size to a decision. Test standard is used to describe the relative size of tests. MIL-STD-lO5E provide seven test levels, namely, general inspection level (generalinspectionlevels) Ⅰ, Ⅱ, Ⅲ,
paul smith bags, and special inspection level (specialinspectionlevels) Sl, S-2, S-3, S-4.
most of the standard of the product by general tests, which test standard Ⅱ as normal inspection level (normalinspectionlevel). Ⅰ Ⅱ with the standard lower than the level of discrimination ability, and level Ⅱ Ⅲ is higher than the level of discrimination ability. The relative standard test number Ⅲ about twice the level Ⅱ, and the standard of Ⅰ Ⅱ was half the level. Test level is reserved for special inspection to be expensive or destructive testing of products.
MIL-STD-l05E the use of procedures can be divided into the following steps:
1. Select AQL.
2. decided to test the level of (InspectionLevel).
3. determine the batch size.
4. find the sample size (look-up table).
5. determine the appropriate sampling plan. (Single, double or multiple sampling)
6. Determine the appropriate sampling plan table. (Ⅰ,
mulberry handbag, Ⅱ, Ⅲ, Sl, S-2, S-3, S-4)
7. Decided to take the normal,
tory burch bags, tightened or reduced inspection.
main table in the investigation, if the encounter vertical arrows, then use the arrow above (or below) the first of a number of sample project acceptance and rejection numbers, but also need to plan in accordance with a sample size of the arrow sampling. If the sample size is greater than volume, the use of 100% inspection
Reprinted from: MIL-STD-105E - MBA think tank Wikipedia
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