ISO 22192:2021

Overview

ISO 22192:2021 - "Bunkering of marine fuel using the Coriolis mass flow meter (MFM) system" - specifies international procedures and requirements for transferring bunkers to vessels using Coriolis mass flow meters (MFM). Published by ISO in 2021, the standard covers the entire bunkering lifecycle on bunker tankers: approval of installed MFM systems, metrological controls, installation and commissioning, operational checks, post-delivery documentation and dispute handling. It is intended to improve measurement accuracy, system integrity and operational transparency during custody transfer of marine fuel.

Key Topics and Requirements

The standard addresses technical and procedural requirements across these core areas:

• Metrological requirements - meter and system performance expectations, zero verification, verification/calibration frequencies and uncertainty considerations (see Clause 5 and Annex B).
• System integrity and security - documentation, type approval, sealing, software and data security, alarm management, and maintenance (Clause 6; Annex C).
• Meter selection, installation and commissioning - site surveys, selection criteria for Coriolis MFMs, physical installation guidance and commissioning/re‑commissioning procedures (Clause 7).
• Verification and routine checks - in-service verification, meter totalizer logging and meter zero checks (Clauses 5.4, 8).
• Metering procedures and documentation - pre-delivery planning, pre‑/post‑delivery checklists, meter reading records, bunker metering ticket, delivery note and custody transfer quantity calculation (Clause 9; Annexes H–K).
• Operational safety and sampling - safety, health and environmental measures during bunkering and fuel sampling procedures (Clause 4; Clause 10; Annex A).
• Dispute handling - procedures and required documents for quantity disputes and protest handling (Clause 9.9; Annex Q).

Applications and Who Uses It

ISO 22192 is practical for organizations involved in marine fuel custody transfer:

• Shipowners, ship operators and charterers - to ensure accurate bunker receipt and reduce quantity disputes.
• Bunker suppliers and bunker tanker operators - for compliant installation, approval and operation of MFM systems.
• Bunker surveyors and port authorities - to perform verification, sampling and independent custody transfer assessments.
• Manufacturers and metrology labs - for type approval, calibration and conformity assessment of Coriolis MFMs.

The standard supports reliable custody transfer, operational transparency and regulatory compliance (local and international regulations such as MARPOL may also apply).

Related Standards

While ISO 22192 focuses on MFM systems for bunkering, users should consider related ISO/IEC and maritime regulations on metrology, flow measurement and environmental compliance when implementing these procedures.