This letter refers to an article by Zotan Turzo and Gabor Takacs entitled "CFD techniques determine gas-lift valve behavior" (OGJ, June 8, 2009, p. 46). The article stated: "Mainly based on the ...
This article outlines guidelines for the testing of high pressure gases utilized in cleanrooms according to the cleanliness limits stated in the FDA cGMP guidelines, the ISO 14644-1 cleanroom ...
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