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  1. Johan Rivera

    Composition of Nitrogen/Helium for Leak Test of process piping

    All, Having a leak rate acceptance criteria of 50 SCF/y in a mixture of 99% Nitrogen/ 1% helium for leak test of process piping, shall such criteria be different if the presence of helium by composition in the mixture is not guaranteed to be 1%?. I appreciate your valuable feedback.

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