In-service inspections are generally required due to local and international legislations and regulations. Most countries require periodical in-service inspections for the high pressure and high temperature equipment like pressure vessels, storage tanks, pipeline lines and etc..
(Periodical) statutory and voluntary inspections can be applied to:
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Pressure vessels
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Storage tanks
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Gas distribution networks (pipelines, RMS stations and etc.)
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Lifting and hoisting equipment
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Electrical installations
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Buildings (commercial and industrial)
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Infrastructures (airports, roads, tunnels, bridges and etc.)
During execution of in-service inspections, various techniques can be utilized by the expert teams:
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Rope access inspection
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Non destructive and on-site material testing
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Coating inspection and technical advise
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Maintenance coordination and site supervision
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Condition survey / assessment
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Failure analysis
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Damage investigations
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Remaining life time (residual life) assessment