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Should PMI testing be performed

Should PMI testing be performed
Update Time:2018-01-23
PMI (Positive Material Identification) should be incorporated to determine the metallic grade of the refractory anchor. This requirement may be waived, if the API method of color coding has been implemented or the material grade has been etched on to the surface of the anchor. Knowledge and verification of the anchor material will assist in the qualification of the weld procedure and personnel qualification.
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