Dnv-rp-f118 Jun 2026

Visual inspection (by ROV or diver) is the minimum . The RP requires quantitative NDT (MFL, ACFM, UT) at defined intervals, especially for chain segments that have experienced abnormal loading events (e.g., storm overloads).

[Technical Review & Modeling] ➔ [Mock-up & Seeded Flaws] ➔ [Blind Testing] ➔ [Destructive Validation] ➔ [Statistical Analysis] 1. Technical Review and Simulation

Systems must demonstrate a high confidence level (often 90% PoD with 95% confidence) for detecting critical-sized flaws.

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Engineers should check DNV's website for the latest revision and any upcoming hearing drafts.

The RP organizes integrity management into five interconnected pillars, each with specific requirements:

The qualification begins with a rigorous evaluation of the inspection system's hardware, ultrasound parameters, focal laws, and zonal discrimination strategy. Advanced simulation software platforms like CIVA are frequently utilized at this stage to map acoustic beam coverage across the weld profile. Modeling helps verify that the ultrasound waves completely sweep the Region of Interest (ROI) before scanning real steel. 2. Creation of Test Mock-ups with Seeded Flaws Visual inspection (by ROV or diver) is the minimum

Engineers often ask: "Why F118 when we have API RP 2RD or ISO 13628-7?"

This new approach marked a significant shift from earlier methods that often lacked a standardized framework. The RP provides a structured, auditable process for qualifying the technology before it is ever deployed on a live project.

Officially titled "Risers for Floating Production Units" , this Recommended Practice (RP) from DNV (Det Norske Veritas) has become the global benchmark for the design, fabrication, testing, and installation of riser systems. Technical Review and Simulation Systems must demonstrate a

Reviewing the workflows governing data storage, equipment maintenance, software updates, and field operations. 2. Historical Performance Evaluation

DNV-RP-F118 provides a structured, statistically based framework for validating Automated Ultrasonic Testing (AUT) systems, shifting focus toward Probability of Detection (PoD) and accurate sizing in pipeline welds. It ensures technical confidence in detecting critical defects by requiring rigorous performance demonstrations, which can be optimized through simulation technologies like CIVA. For more details, visit www.extende.com AUT Pipeline testing with CIVA - Extende