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  1. Schavlan

    Sample Size / Statistical Significance

    I don't have access to a statistical engine for my computer or the military specs mentioned, but I'm looking at the same issue. In trying to prove out a new batch process, how many batches do I need to run in order to show that I am able to confidently make specifications of the product. Is 10...
  2. Schavlan

    ITPM for Heat Exchangers

    Bump.......... Thanks gr2vessels. I appreciate the valuable input. Does anyone else have anything to add ?
  3. Schavlan

    ITPM for Heat Exchangers

    I'm looking to develop an ITPM (Inspection Testing and Preventive Maintenance) for our Mechanical Integrity program regarding heat exchangers. Does anyone know of, or have any idea of the techniques available to test the heat exchangers and how often they should occurr. I;ve heard of eddy...

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