What is AQL in a sample plan?
Acceptable Quality Limit (AQL) AQL (Acceptable Quality Limit) Sampling is a method widely used to define a production order sample to find whether or not the entire product order has met the client’s specifications. Based on the sampling data, the customer can make an informed decision to accept or reject the lot.
What does an AQL of 1.0 mean?
As an example, consider an AQL of 1% on a production run. This percentage means that no more than 1% of the batch can be defective. If a production run is composed of 1,000 products, only 10 products can be defective. If 11 products are defective, the entire batch is scrapped.
What are the types of sampling plan?
TYPES OF ACCEPTANCE SAMPLING PLANS There are three important types of Acceptance Sampling Plans. These are Single Sampling Plan (SSP) Double Sampling Plan (DSP) Multiple or Sequential Sampling Plan (I) SINGLE SAMPLING PLAN. If the decision to reject or accept a lot is taken on the basis of one sample only, the Acceptance Sampling Plan is known as the Single Sampling Plan..
What is a sampling plan in quality control?
A single sampling plans is easy to design,explain and diameter.
What is zero acceptance sampling plan?
– The random sample size would be 200 pieces – The lot could be accepted with up to five sampled parts out of spec – The lot would be rejected and subject to 100% inspection only if six or more parts were out of spec
What is an ISO sampling plan?
Sampling plans in this part of ISO 2859 may also be used for the inspection of lots in isolation but, in this case the user is strongly advised to consult the operating characteristic curves to find a plan that will yield the desired protection (see 12.6).