4.1 ACCEPTANCE OF LOTS

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What ? screening of arriving product lots to ensure adequate quality for use

Why? Because putting parts into production when they are out of spec. will probably result in out of spec. product. This will cost much more.

Advantages,

- focuses quality problems on source

- reduces inspection required

- can use destructive testing

- rejection of entire lots increases supplier quality incentives

- uses known risks and probabilities

Disadvantages,

- good/bad lots may be rejected/accepted without reason

- planning and documentation required

- only describes part of a lot