Magnaflux Corporation

Phillip W Schiffert

A dry magnetic particle bath for non-destructive testing of a magnetizable workpiece to detect flaws comprising magnetic particles, a modified dextrose adhesive, and a carrier powder. In certain other embodiments of the invention the magnetic particle bath is instead a wet bath comprising water, magnetic particles, and modified dextrose. According to the invention, the wet bath can also contain an anti-freeze component consisting essentially of urea and ethylene glycol, glycerine or monoethanolamine to depress the freezing point of the water bath to 10.degree.-15.degree. F.; the invention encompasses wet bath formulations which contain the anti-freeze component in combination with adhesives other than modified dextrose.

Method for non-destructive testing of a magnetizable workpiece under

A standard specimen for calibrating an ultraviolet scanning system of the type used to detect surface flaws in workpieces by penetrant testing including a piece of glass which has the characteristic of emitting fluorescent radiation upon excitation by ultraviolet light, and a heat conductive carrier element rigidly supporting the piece of glass therein. The standard specimen provides a means for confirming instrumentation stability despite changes in temperature.

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Oak Park, IL, United States of America

Phillip W Schiffert