Api Rp 586 🎁

| Standard | Method | Typical MDL | Application | |----------|--------|-------------|--------------| | EPA Method 21 | Sniffer probe (FID) | 500 ppmv (ca. 10–100 g/hr) | Component-level regulatory compliance | | | Laser optical (DIAL/QOGI) | 5 g/hr | Fugitive emission management, LDAR alternative | | EPA OTM 33 | QOGI (qualitative only) | Visual detection (no quantification) | Screening only | | ISO 14385-1 | DIAL for industrial plumes | 1–10 g/hr | Stack and area sources |

The recommended practice covers several critical areas: api rp 586

refers to Recommended Practice 586 , titled "Risk-Based Inspection of Pressure Relieving Devices." | Standard | Method | Typical MDL |

Refinery tank farm (50 tanks, 200 valves, 50 flanges). Goal: Identify and quantify methane leaks >10 g/hr for internal reduction target. Using API RP 586 QOGI approach: Using API RP 586 QOGI approach: It covers

It covers in-service, out-of-service, ferromagnetically active, and non-ferrous heat exchanger tubing.

The RP is organized into multiple parts, each focusing on specific damage mechanisms or equipment types: API RP 586: HTHA Inspection Guidance | PDF - Scribd