Method for determining and adjusting the potency and effectivene

Details Method for determining and adjusting the potency and effectivene Method for determining and adjusting the potency and effectivene

1982-10-22

1985-05-07

Kaplan, G. L.

Metal treatment

Compositions

Heat treating

148 615R, 204 1T, 204404, C23F 708, C23F 710, C23F 712

Patent

active

045156433

ABSTRACT:
An electrochemical sensor system to control the surface characteristics or coating quality of an electrically conducting surface treated with a chemical treatment solution. The sensor system operates by measuring the electrical characteristics of the electrically conducting surface. The system can be used as a quality control test and as a method for controlling the composition of the chemical treatment solution.

REFERENCES:
patent: 3840439 (1974-10-01), Marsh
patent: 4182638 (1980-01-01), Cooke
Nace Publication 3D170, "Modern Electrical Methods for Determining Corrosion Rates", (1970).
"Quantitative Test for Zinc Phosphate Coating Quality" by R. W. Zurilla et al., SAE Technical Paper No. 780187, Society of Automotive Engineers, Inc.
"Electrochemical Methods to Determine the Corrosion Rate of Coated Metals", by M. Piens et al., published in the Proceedings of the International Congress of Metal Corrosion, 8th, 1981, p. 1021, vol. 2, 47LJAF.

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