标题: About AQL & MIL STD 105E [打印本页] 作者: wtoqc 时间: 2007-4-27 18:48 标题: About AQL & MIL STD 105E All inspectors use the MIL STD 105E tables, which are recognized standards by every industrial company.
This American standard now has equivalents in all national and international standardization organisations (ANSI/ASQC Z1.4, ISO 2859, NF06-022, BS 6001, DIN 40080).
This standard is a proven method to accept or reject a production lot by inspecting a randomly selected number of products.
This method is called ‘AQL’(acceptable quality level):
Uses the Acceptable Quality Level (AQL) to establish a maximum allowable error rate or variation from the standard. Acceptance testing will cease immediately if the failure rate of the product being tested exceeds the minimum Acceptable Quality Level.
NB: It is important to note that Acceptance Sampling cannot provide 100% perfect products. The only way of achieving this is to produce 100% perfect products.
MIL STD 105E table:
Practically, the MIL STD 105E tables are summarised below: Table A :
NB: What can I find out from the AQL tables?
Let's take a lot of 3,000 units to inspect, with an AQL of 2.5%.
According to Table B, the sample size is therefore 125 units, and the corresponding acceptance number is 7.
In other words:
If the number of defective units is more than 7, the lot has to be rejected
If the lot is accepted, it is commonly perceived that there is a maximum of 2.5% of defective units in the lot (with a failure risk percentage of less than 5%).
作者: wenbo_wu 时间: 2007-5-28 21:10
楼主很热心.我们公司用的也是这个标准.作者: cubrd 时间: 2007-6-5 09:25
基本上都是用的这个标准的吧？作者: qiangyt 时间: 2007-6-5 15:55
105E以经更新了。作者: eric 时间: 2007-6-5 17:09
好東西...下了...作者: 笨猪 时间: 2007-6-14 18:39
踩踩～～～～～～～～～作者: teida 时间: 2007-6-18 21:52
去那里可以下载到呢!!!!作者: yuanyi0754 时间: 2007-7-1 12:11
基本都是用这个标准。。呵呵作者: woowhoow 时间: 2007-7-1 14:29
感谢分享，我以前也是用这个的，不过现在不用了，现在全检作者: roger66 时间: 2007-7-2 13:57 标题: 好 谢谢楼主分享！收藏了作者: gefengde 时间: 2007-7-3 15:07
一直知道AQL
但比较少知道 MIL STD 105E
他俩是不是一回事?有没有区别?作者: amychan 时间: 2007-7-18 16:42 标题: 这是常用的AQL 我们也是用这个标准的! 很不错作者: yyfbz 时间: 2007-7-18 18:26
其实不管是哪个标准,这几个表基本上都是一样的!作者: Alexw2008 时间: 2007-8-3 23:33 标题: AQL 确实不错，感谢！！作者: 书含 时间: 2007-8-6 22:27
我们在实际运作中还是很少有按AQL去抽样....作者: scott118 时间: 2007-8-7 08:13
105E is cancelled,at present use ANSI/ASQC Z1.4-2003作者: manhoo 时间: 2007-8-7 08:37
还有不明白的地方
