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First and foremost, inline inspection allows for real-time identification of defects during the manufacturing process. This immediate detection helps prevent the accumulation of errors and defects, reducing the need for extensive rework at later stages.

These testing methods include hydrostatic testing, pneumatic testing, ultrasonic testing, magnetic particle testing, radiographic testing, visual inspection, and leak testing. It also highlights how these methods contribute to safety, operational standards, and quality assurance in piping systems.

The Pipeline Safety Division of the Office of the State Fire Marshal (OSFM) ensures the safety of intrastate hazardous liquid pipelines in California. Certified by the U.S. Department of Transportation, we conduct inspections and enforce state and federal regulations to safeguard our communities.

In-line Inspection (ILI) involves the evaluation of pipes and pipelines using “smart pigs” (both tethered and non-tethered) that utilize non-destructive examination techniques to detect and size internal damage.

An internal pipe inspection is an analysis of the interior of a pipe to determine the interior level of corrosion or other issues present inside. If a pipe is large enough for a person to enter, a direct, visual inspection is used.

In-line inspection tools are equipped with hundreds of electronic sensors that inspect the quality of the pipeline inside and out to identify even the tiniest crack, flaw or sign of corrosion.