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  1. chemicalcleaning

    Pre-shutdown unit decontamination

    Depending where you are in the world. Try looking up eurocorpex or zymeflow.
  2. chemicalcleaning

    Chemical cleaning of mixed stainless-carbon steel

    You could use warm sulfamic acid (7-10%) with inhibitor (rodine or similar). It's reactivity depends on temperature from being fairly slow at room temperature to being quite quick at 65C. It's only good for cleaning water scale and very light rusting. Also it's easy to handle. As with all acids...
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