MSS Banner The Technical Voice of the Industry
View Larger Image


Quality Standard for Phosphate Surface Protective Coatings for Valves, Fittings, and Related Steel Piping Components

General This Standard Practice covers requirements for the application of phosphate coatings on ferrous metal valves, fittings, and related steel piping components that necessitate surface protection.
The phosphate surface conversion methods detailed in this Standard Practice provide surface protection and are intended for valves, fittings, and steel piping components where surface protection and dimensional tolerances are maintained after coating.
Phosphate coatings in this Standard Practice utilize zinc and iron manganese and require a supplementary water soluble oil treatment after phosphate coating to enhance surface protection.
This Standard Practice includes a surface protection test method and acceptance criteria for verifying conformance to the Standard Practice.


Today is: Monday
September 28, 2020

MSS Member Login

MSS Scholarships
(Now Accepting 2020 Applications)
Deadline Extended

MSS Apparel

We Accept:
VISA  MasterCard  American Express
Discover  Diners Club 
Site Secured by:

Like us on:

Accept Credit Cards Online