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Equivalence Process for Pressure Vessels at BNL: Safety Protocols and Compliance

This document outlines the equivalence process for new pressure vessels and piping at BNL when compliance with ASME codes is not feasible. It emphasizes three key documentation requirements: review by the Pressure and Cryogenic Safety Sub-Committee, qualification of personnel involved in examinations and inspections, and retention of essential documents regarding design, testing, and maintenance. Recent equivalences have involved alternative materials and increased operating pressures. Compliance with other relevant safety codes is also covered, alongside best practices for inspections and training.

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Equivalence Process for Pressure Vessels at BNL: Safety Protocols and Compliance

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  1. Equivalence to Code Processes Safety Notes Safety Photos of the Week Collider-Accelerator Department 3-16-2010 Take 5 for Safety

  2. Equivalence Process for Pressure Vessels at BNL • If a new pressure vessel or pressurized piping cannot be manufactured to comply with the ASME codes, what is the equivalence process at BNL? • Equivalence means the solution must provide equivalent protection. Review and documentation must meet three basic requirements: • Design drawings, sketches and calculations must be reviewed by the BNL Pressure and Cryogenic Safety Sub-Committee • Qualifications of personnel used to perform examinations, inspections, fabrications and testing must be documented • Documents such as qualification records, materials certifications, narrative descriptions of design, pressure conditions, testing, inspection, operation, repair and maintenance of the pressurized system must be retained by the Department in a formal document control system • BNL approved equivalences for pressurized systems in the past two years have resulted in use of high-pressure piping that did not meet code requirements, alternatives to welding inspections, use of new materials such as niobium, and an increase in originally allowed operating pressure for a pre-2007 system

  3. Other Equivalence-Like Processes at BNL • National Electrical Code Requirements • Request must go through the Lab Electrical Safety Committee • Example: non-tray rated cable in tray at STAR and PHENIX • Example: test GFCIs before use rather than monthly • OSHA Requirements • Formal BNL waiver needed • De minimis conditions only • Example 4-31: §1910.27(b)(1)(ii) allows 12 inches as the maximum distance between ladder rungs. Where the rungs are 13 inches apart, the condition is de minimis • NFPA Requirements • Request must go through BNL Fire Safety Committee • Example: Fire barriers at STAR and PHENIX • SBMS Requirements • Formal BNL waiver needed • Subject Matter Expert and Management System Steward must sign • Example: Na22 in soil at RHIC

  4. Safety Notes • ISO 14001 and OHSAS 18001 Registrations in May • Refresher training in late April • Bring ODH monitors to Ann Marie Luhrs for calibration • Due every 6 months • Inspect ODH escape packs monthly • Check: hose connections, fill gauge, hood • Initial tag each month after check

  5. Safety Photos of the Week (From the Home Front)

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