Major defect definition
Introduction
The acceptable quality limit (AQL) is the worst tolerable process average (mean) in percentage or ratio that is still considered acceptable; that is, it is at an acceptable quality level.
Details
Major defects refer to major defects that have a significant impact on the product's use function, performance, structure, etc. and do not meet the relevant design requirements. Major defects not only affect the normal use of the product, but may also have a significant adverse effect on the product's performance and structure.
In product quality inspection, the definition of major defects is usually designed in the following aspects:
1. Impact on use function: Major defects will directly affect the basic functions of the product, causing the product to fail to work properly or achieve the expected results.
2. Impact on performance: Major defects may cause product performance to deteriorate and fail to meet design requirements or user expectations.
3. Impact on structure: Major defects may affect the structural integrity of the product and reduce the durability and safety of the product.
For example, in software testing, major defects may include errors that affect the basic functions of the software, such as data loss, functional failure, etc. In product quality law, major defects usually refer to product design or manufacturing problems that do not meet national or industry standards.
AQL tolerance for major defects
Generally speaking, the tolerance of AQL for major defects is 2.5%. For example, for a large batch of 1,000 products, it is completely acceptable to have about 25 major defects, but once the number of major defective products exceeds this range, the batch of products will fail the inspection.
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In product quality inspection, the definition of major defects is usually designed in the following aspects:
1. Impact on use function: Major defects will directly affect the basic functions of the product, causing the product to fail to work properly or achieve the expected results.
2. Impact on performance: Major defects may cause product performance to deteriorate and fail to meet design requirements or user expectations.
3. Impact on structure: Major defects may affect the structural integrity of the product and reduce the durability and safety of the product.
For example, in software testing, major defects may include errors that affect the basic functions of the software, such as data loss, functional failure, etc. In product quality law, major defects usually refer to product design or manufacturing problems that do not meet national or industry standards.
AQL tolerance for major defects
Generally speaking, the tolerance of AQL for major defects is 2.5%. For example, for a large batch of 1,000 products, it is completely acceptable to have about 25 major defects, but once the number of major defective products exceeds this range, the batch of products will fail the inspection.
Nanjing Weproving Inspection professional thrid party inspection company. Our mainly services are factory audit, production inspection, container loading check, amazon fba check. 100+ full time inspectors competitive price.
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