| Standard | Focus | Limitation vs. API 586 | |----------|-------|------------------------| | ASME BPVC VIII | Mechanical strength | No leak rate prediction | | ISO 15848 | Valve stem leakage | Not for flange joints | | TA Luft (VDI 2440) | Leak rate < 10⁻⁴ | Less detailed gasket data | | | Flange leakage + gasket selection | Requires ASTM F2837 testing |
– Covers inspection of ferrous and non-ferrous tubes using electromagnetic and ultrasonic methods. Part 2: High Temperature Hydrogen Attack (HTHA)
: Dictates Multi-Frequency Eddy Current Testing (ECT).
Key NDT methods highlighted in API RP 586 include: