A method is given by which the true resistance of both insulating joints and pipe coating can be determined. It combines field resistance measurements and algebraic computations of true resistances. Detailed instructions are given for the placement of test points and the formulae are explained. A special method for use with poorly coated or uncoated pipe lines is explained. The method outlined has been adopted in the New York City area and has been found satisfactory.

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Copyright 1953 by the National Association of Corrosion Engineers.
1953
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