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How to determine whether component is zinc phosphated or manganese phosphated

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SUGGESTED PHOSPHATING BOOKS
(many of these are rare; the links will only sometimes work)

"Optimization of Phosphating Process" by Vinod Prasad Sharma (2022)
avail from AbeBooks, or Amazon

"Phosphating of Metals" by Werner Rausch (1991)
avail from eBay, AbeBooks, or Amazon

"Phosphating & Metal Pretreatment" by D.B. Freeman (1986)
avail from eBay, AbeBooks, or Amazon

"Phosphating of Metals" by Guy Lorin (1974)
avail from AbeBooks, or Amazon

"Electrolytic and Chemical Conversion Coatings" by Biestek & Weber (1972)
avail from AbeBooks, or Amazon

"A Study of Manganese Phosphating Reactions" by Joseph Menke (1971)
avail from AbeBooks, or Amazon

"Preparation of Metals for Painting" by Samuel Spring (1966)
avail from eBay, AbeBooks, or Amazon

"Continuous Automated Analysis and Control of phosphatizing Baths" by Edward P. Parry (1972)
avail from AbeBooks, or Amazon

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Q. I have two components which are phosphate coated, but I want to know which one is zinc or manganese phosphated? Please suggest if there any lab testing process (apart from visual) to confirm it?
The component is phosphate coated in my shop but I want to know through any lab testing.

regards

Prasad Kasar
- Pune India
November 5, 2023

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