Title:
MEASUREMENT OF CRYSTAL FINING AGENT IN PHOSPHATE CONVERSION COATING BATH
Document Type and Number:
Japanese Patent JPS58176546
Kind Code:
A
Abstract:
The amount of organic, phosphorous containing grain refiners in phosphate conversion coating baths is determined by precipitating the grain refiners and determining the difference in the chemical oxygen demand of the bath before and after the precipitation.
Inventors:
RICHIYAADO JIYOOJI ADAMUZU
Application Number:
JP4903983A
Publication Date:
October 17, 1983
Filing Date:
March 25, 1983
Export Citation:
Assignee:
PENNWALT CORP
International Classes:
C23C22/08; G01N31/00; (IPC1-7): G01N31/00
Attorney, Agent or Firm:
Motohiro Kurauchi
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