UOP434-83

    Historical Standard: UOP434-83 Free Water and Volatile Hydrocarbon Content of Molecular Sieves

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    1. Scope

    This method is for determining the free water content of either fresh or used molecular sieves down to a lower limit of 0.1 mass-%. Free water content of fresh sieves is defined as the loss in mass as the result of a prescribed period of heating at 350 C. The free water content, calculated on a hydrocarbon free basis, and the volatile hydrocarbon content of used sieves can also be determined.


    Citing ASTM Standards
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