ASME B31.3 Process Piping Inspection, Examination and Testing

ASME B31.3 Process Piping Inspection, Examination and Testing

• Inspection
• Examination

• Methods

• Requirements

• Acceptance Criteria

• Leak Testing

• Methods

• Requirements

Inspection

The owner’s inspector:

• Verifies that all required examinations and testing have been completed
• Has access to any place where work is being performed
• Must be independent of organizations performing fabrication, examination, installation or testing
• Must have 10 years experience or 5 years experience plus an engineering degree

Examination

Examination applies to quality control functions performed by the manufacturer (for components only), fabricator, or erector. Reference in this Code to an examiner is to a person who performs quality control examinations.

The examiner:

• Examines piping in accordance with Code requirements
• Examines piping is accordance with additional requirements described in the engineering design
• Prepares suitable examination records for use by the inspector
• Shall have training and experience commensurate with the needs of the specified examinations

Examination is performed in order to assure that:

• Components conform to the specifications for

• Material of construction
• Design
• Freedom from defects

Piping is installed with the proper

• Support
• Alignment
• Joint assembly

Discontinuities are sufficiently small that they don’t grow into leaks during operation

Examination Methods

Examination methods include

• Visual (VT)
• Positive Material Identification (PMI)
• Liquid Dye Penetrant (PT)
• Magnetic Particle (MT)
• Radiography (RT)
• Ultrasonic (UT)
• In-Process

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