Method for assaying iron-exposed portion of coated steel plate o

Details Method for assaying iron-exposed portion of coated steel plate o Method for assaying iron-exposed portion of coated steel plate o

1980-08-18

1982-06-01

Kaplan, G. L.

Chemistry: electrical and wave energy

Processes and products

324 51, 324 71R, G01N 2700, G01N 2726

Patent

active

043326463

ABSTRACT:
Disclosed is a method for assaying an iron-exposed portion of a coated steel plate or a processed product thereof, which comprises bringing a surface, to be measured, of the coated steel plate or processed product thereof, a reference electrode and a counter electrode into contact with a buffer solution having a pH value of from 9.0 to 11.0, effecting in this state electrolysis between the counter electrode and the coated steel plate or processed product thereof under such conditions that the voltage of the coated steel plate or processed product thereof to the reference electrode is 0.8 to 1.5 volts as calculated as a saturated calomel electrode, and evaluating the iron-exposed portion by measuring an electric current flowing between the counter electrode and the coated steel plate or processed product thereof or by observing precipitation and deposition of an oxide or hydrated oxide of iron. According to this method, an iron-exposed portion of a coated steel plate or a processed product thereof can selectively be detected and assayed and evaluated precisely without any substantial influence on a metal present as the coating layer very easily by using a simple measurement apparatus. The results obtained according to this method are well in agreement with the results of the actual test made on cans or other processed products of the coated steel plate.

REFERENCES:
patent: 3479256 (1969-11-01), Smith et al.
patent: 4104579 (1978-08-01), McIvor

Affiliated with

Also associated with

Rating

Method for assaying iron-exposed portion of coated steel plate o does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for assaying iron-exposed portion of coated steel plate o, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for assaying iron-exposed portion of coated steel plate o will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1848294