MSS Banner The Technical Voice of the Industry
SP-137-2020
View Larger Image

SP-137-2020

Quality Standard for Positive Material Identification of Metal Valves, Flanges, Fittings, and Other Piping Components

This Standard Practice provides methods and acceptance standards for Positive Material Identification (PMI) of metal flanges, fittings, valves, pressure boundary parts of valves, and other piping components.
The instrumentation used for PMI testing covered by this Standard Practice shall be optical spectroscopy, X-ray fluorescence, or laser induced breakdown spectroscopy.
This Standard Practice is applicable to the identification process, at point of final inspection or in-process inspection during manufacturing.
This Standard Practice describes requirements for semi-quantitative analysis used for material grade identification only. This procedure may not be suitable for certifying the accuracy of material test reports.

     


Today is: Thursday
November 26, 2020

MSS Member Login

MSS Brochure

MSS Scholarships

MSS Apparel


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

Like us on:

Accept Credit Cards Online