Historical
MSS SP-9-2001 (R 2005)
Spot Facing for Bronze, Iron and Steel Flanges
This MSS Standard applies to the spot facing of pipe flanges in bronze, gray iron, ductile iron or steel when cast integral with valves and fittings, as well as the companion flanges, when so required by the standard for the product.
Content Provider
Manufacturers Standardization Society of the Valve and Fittings Industry, Inc. [mss]