PMI in piping contexts refers to:

PMI in piping contexts refers to:

• A. Preventive Material Inspection
• B. Positive Material Identification
• C. Primary Mechanical Integrity
• D. Pressure Monitoring Interface

Answer: (B)

Positive Material Identification is the process of confirming the actual material composition and identity of piping components. In practice, technicians use nondestructive methods such as X-ray fluorescence (XRF) analyzers or handheld spectrometers to verify the alloy grade and traceability against project specifications and code requirements. This ensures the material matches what was specified for corrosion resistance, strength, weldability, and service conditions. Verifying material identity helps prevent mismatches that could lead to inadequate performance or premature failure in demanding environments. PMI is typically performed during fabrication, installation, or maintenance to confirm the correct materials are in place and properly documented. Other terms describe different activities, such as general inspections or system monitoring, rather than identifying the exact metal in the components.

Positive Material Identification is the process of confirming the actual material composition and identity of piping components. In practice, technicians use nondestructive methods such as X-ray fluorescence (XRF) analyzers or handheld spectrometers to verify the alloy grade and traceability against project specifications and code requirements. This ensures the material matches what was specified for corrosion resistance, strength, weldability, and service conditions. Verifying material identity helps prevent mismatches that could lead to inadequate performance or premature failure in demanding environments. PMI is typically performed during fabrication, installation, or maintenance to confirm the correct materials are in place and properly documented. Other terms describe different activities, such as general inspections or system monitoring, rather than identifying the exact metal in the components.