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PPM

[求助]什么是PPM~~~!

有一家大公司要求偶公司回这个东东``

偶不知道``

知道的请给点资料
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Parts Per Million. Typically used in the context of defect Parts Per Million opportunities. Synonymous with DPMO(Defects per million opportunities (DPMO) is the average number of defects per unit observed during an average production run divided by the number of opportunities to make a defect on the product under study during that run normalized to one million.

Defects Per Million Opportunities. Synonymous with PPM.

To convert DPU to DPMO, the calculation step is actually DPU/(opportunities/unit) * 1,000,000.
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