Historical Standard: UOP377-90 Free Sulfur in LPG by Mercury Number

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    1. Scope

    This is a semi-quantitative method for determining free sulfur in liquefied petroleum gases. Peroxide is an interference that increases the apparent elemental sulfur value. The lower limit of detection is a mercury number of 0.3, which is equivalent to approximately 0.6 mass-ppm.

    Citing ASTM Standards
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