Dnv-rp-f118 Jun 2026

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

Verifying that the system yields consistent results across multiple scans of the same weld. Temperature Sensitivity: dnv-rp-f118

| Standard | Focus | Key difference | |----------|-------|------------------| | | Integrated riser system on floating units | Most rigorous for fatigue and accidental loads; explicit treatment of FLS and ALS; preferred by European and Asian operators. | | API RP 2RD | Design of risers for floating productions | More prescriptive, less probabilistic; widely used in US Gulf of Mexico but recognizes F118 for fatigue. | | ISO 13628-7 | Completion/workover risers | Narrower scope (intervention risers, not production risers). | | DNVGL-ST-F201 | Dynamic risers (general) | A standard (higher safety level) than RP; F118 is often the companion guide to ST-F201 for floating unit interfaces. | Temperature Sensitivity: | Standard | Focus | Key

The practice was established to ensure consistency in how AUT systems—which have largely replaced radiography in offshore projects due to their efficiency and lack of radiation hazards—are qualified. It focuses on two critical performance metrics: Probability of Detection (PoD): | | DNVGL-ST-F201 | Dynamic risers (general) |

The system must demonstrate a high probability of finding defects of a certain size. Sizing Accuracy: