NDT safety

Non-Destructive Testing (NDT) is a crucial process for identifying latent defects in materials without altering their physical or chemical state. NDT is essential for ensuring the safety and integrity of various structures and equipment. [3]

General safety procedures for NDT include:

• Using manufacturer's operational tests to determine if safety mechanisms are working within operational limits.
• Regularly conducting tests and recording the results.
• Becoming familiar with the manufacturer's maintenance instructions and specifications.
• Developing and implementing a maintenance and inspection program based on the manufacturer's recommendations.

[1] [1] Regulatory compliance requirements include:

• NDT must be performed in conformance with manufacturer's specifications.
• Any hidden shaft or structural member in an amusement device may be required to undergo NDT after written notice from the Department.
• Structural components of tower cranes must be inspected using NDT methods meeting the requirements of the Canadian General Standards Board (CGSB) or other methods acceptable to the board before erection and every 12 months thereafter.
• All load-bearing components of a mobile crane must undergo non-destructive testing under the direction and control of a professional engineer in accordance with the manufacturer's specifications at 12-month intervals from the date of the mobile crane's most recent certification.

[1] [2] [5] Specific regulations for tower cranes include:

• Before erection, structural components must be inspected using NDT methods meeting CGSB requirements and certified as safe by a professional engineer.
• If a tower crane remains erected for more than 12 months, its structural components must be inspected using NDT methods meeting CGSB requirements and certified as safe by a professional engineer.
• Unique identification of interchangeable structural components is required for inspection, testing, repair, and modification reports.
• Tower crane structures must be kept clean to facilitate inspection.

[4] [4] [4] [4] Mobile cranes also require that all load-bearing components undergo non-destructive testing under the direction and control of a professional engineer in accordance with the manufacturer's specifications at 12-month intervals from the date of the mobile crane's most recent certification. [5]