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Author: Veress Árpád · Explosion-protection expertDAILY Ex - 31 OCTOBER 2026
TODAY'S FOCUS: The hazardous area may be correctly classified. But what happens when the containment system is damaged? A major development in the investigation of a fatal gas explosion in Greece, new IECEx service-facility certification procedures, research into aluminium-dust hazards and battery off-gas explosions, and advances in hazardous-area gas analysis lead today's edition. For Heads of Operations: Preventing the release of flammable substances is just as important as controlling ignition sources.
⚡ DAILY Ex | 31 OCTOBER 2026
Explosion Protection | Operational Ex | Global Watch
TODAY'S FOCUS: The hazardous area may be correctly classified. But what happens when the containment system is damaged?
A major development in the investigation of a fatal gas explosion in Greece, new IECEx service-facility certification procedures, research into aluminium-dust hazards and battery off-gas explosions, and advances in hazardous-area gas analysis lead today's edition.
For Heads of Operations: Preventing the release of flammable substances is just as important as controlling ignition sources.
🔴 1. GREECE | Six killed in gas explosion - investigators identify damaged pipework
NEW INVESTIGATION DEVELOPMENT - 30 October 2026
Greek authorities arrested three suspects following an investigation into the explosion that destroyed a residential building in Athens on 25 September.
Six people died, including four American visitors.
According to investigators, the suspects allegedly removed copper gas pipes, damaging the building's natural-gas supply. Gas subsequently accumulated and reportedly ignited when a resident operated a light switch.
The arrests represent a significant new development in establishing the incident's sequence of events.
Why it matters operationally: Damage to gas infrastructure can create an explosive atmosphere in locations never intended to contain flammable gas.
Management action: Review third-party interference, contractor access, pipeline identification and leak-response procedures.
🔴 2. INDIA | Five workers killed during chemical hydrogenation
RECENT INCIDENT - 16 October 2026
An explosion at Synzeal Pharmachem in Gujarat killed five workers and critically injured five others.
The incident occurred during a hydrogenation process involving flammable hydrogen gas.
Authorities ordered operations suspended pending investigation.
The precise initiating mechanism remains unconfirmed.
Why it matters operationally: Hydrogenation requires control of pressure, temperature, reaction conditions, hydrogen containment and potential ignition sources.
Management action: Review reactor protection, abnormal-condition response and the evidence required before restarting a process following a significant incident.
📘 3. IECEx | New service-facility certification procedure published
NEW OPERATIONAL DOCUMENT - 27 October 2026
IECEx has published OD 313-5:2026, Edition 1.3, covering assessment and certification procedures for facilities repairing, overhauling and reclaiming Ex equipment.
The revision is editorial: it removes specific standard-edition years from Step 4. It does not introduce an entirely new certification scheme.
The document nevertheless provides an important procedural reference for certification bodies and service facilities.
It addresses documentation review, assessment of personnel competence, on-site audits, Facility Assessment Reports, independent certification review, surveillance and extensions of scope.
Each permanent repair facility requires its own assessment and certification documentation. https://www.iecex.com/assets/dmsdocuments/1573/IECEx_OD313-5-Ed1_3_RLV.pdf
Why it matters operationally: Certification must reflect the actual repair location, protection concepts, personnel competence and authorised activities.
Management action: Verify that contracted Ex repair facilities have certification covering the specific services required.
https://www.iecex.com/assets/dmsdocuments/1573/IECEx_OD313-5-Ed1_3_RLV.pdf
📘 4. IEC 60079-0:2026 | Important changes for Ex machinery
STANDARDS WATCH - Published 2026; technical review
The eighth edition of IEC 60079-0 introduces changes affecting Ex equipment marking, documentation, electrostatic protection and rotating machinery.
Among the significant changes identified by https://www.sgs.com/ are requirements concerning temperature monitoring and shutdown for rotating machines using auxiliary cooling fans, together with additional instructions for converter-driven Ex e motors.
The standard also introduces provisions for digital marking and revised requirements concerning non-metallic materials. https://www.sgs.com/en-gb/news/2026/07/iec-60079-0-2026-significant-technical-changes
Why it matters operationally: Motor cooling arrangements, converter settings and protective functions form part of the equipment's explosion-safety design.
Engineering lesson: A replacement motor or frequency converter must be assessed against the certified operating arrangement.
https://www.sgs.com/en-gb/news/2026/07/iec-60079-0-2026-significant-technical-changes
🔬 5. CHINA | New research maps explosion risks in aluminium processing
RESEARCH - 13 October 2026
Researchers at South China University of Technology published a study proposing an integrated approach to explosion-risk management in aluminium processing.
The framework combines hazard identification, fault-tree analysis, Bayesian networks and evaluation of potential accident propagation.
The researchers identified 65 hazards across three processing stages and proposed prioritised preventive measures.
The results are specific to the investigated processes and methodology. https://www.mdpi.com/2071-1050/18/20/10415
Why it matters operationally: Metal-dust explosion prevention requires more than equipment certification. Material handling, housekeeping, ignition prevention and propagation pathways must be assessed together.
https://www.mdpi.com/2071-1050/18/20/10415
🔬 6. SOUTH KOREA | Battery off-gas creates explosion hazards aboard hydrogen vessels
RESEARCH - 13 October 2026
A study involving Korean researchers investigated thermal-runaway gas releases from lithium-ion batteries aboard a hydrogen-propelled passenger vessel.
The researchers identified combustible gases and evaluated potential explosion pressures and structural consequences for a battery compartment.
The results demonstrate that battery thermal runaway can create a secondary flammable-gas explosion hazard.
The reported structural findings are specific to the vessel geometry and experimental assumptions. https://www.mdpi.com/2077-1312/14/20/1907
Why it matters operationally: Electrification and hydrogen technology introduce interacting hazards that conventional equipment assessments may not fully address.
Engineering lesson: Battery-room ventilation, gas detection, isolation and structural protection require coordinated assessment.
https://www.mdpi.com/2077-1312/14/20/1907
📘 7. UK | Corrosion caused a major LPG release
HISTORICAL INCIDENT LEARNING - 2022; enforcement June 2026
The Health and Safety Executive reported that https://www.esso.co.uk/ was fined £1 million following a major LPG release at Fawley Refinery.
In November 2022, corrosion-related structural failure damaged pipework, releasing approximately 2,400 kg of LPG.
The investigation established that corrosion had been identified years earlier but had not been adequately addressed.
Fortunately, the released gas did not ignite. https://press.hse.gov.uk/2026/06/15/esso-fined-1-million-after-major-gas-leak-at-fawley-refinery/
Why it matters operationally: Explosion prevention begins with mechanical integrity and loss-of-containment prevention.
Historical lesson: A hazardous-area classification cannot compensate for deteriorating pipework or inadequate asset-integrity management.
https://press.hse.gov.uk/2026/06/15/esso-fined-1-million-after-major-gas-leak-at-fawley-refinery/
📅 9. FRANCE | Expoprotection opens next week
UPCOMING EVENT - 3–5 November 2026
Expoprotection 2026 takes place in Paris, bringing together industrial safety, emergency-response, fire-protection and risk-management professionals.
The programme includes technical conferences and demonstrations of prevention technologies. https://www.expoprotection.com/
Why it matters operationally: New protective technologies should be evaluated against actual industrial hazards, installation constraints and maintenance requirements.
https://www.expoprotection.com/fr-fr/programme.html
▶️ OPERATIONAL Ex USE CASE
The contractor damages a gas pipe outside the hazardous area
PRACTICAL | Illustrative scenario
A manufacturing facility operates natural-gas-fired production equipment.
The gas installation has been inspected and maintained.
The electrical equipment is suitable for its classified environment.
A contractor begins installing a new cable route near an existing gas pipeline.
During the work, the pipeline is accidentally damaged.
Gas escapes into an adjacent service area.
The area was previously classified as non-hazardous.
Can Operations rely on the original hazardous-area classification?
No.
The original classification describes assessed operating conditions and foreseeable releases. It does not establish that an uncontrolled gas release is safe.
The immediate priority is emergency response, not reclassification.
Personnel must follow the site's emergency procedures, avoid potential ignition sources, withdraw from the affected area and arrange isolation by authorised personnel when safe.
Before restarting, the facility must establish the cause of the damage, verify pipeline integrity, assess the affected installation and confirm that the required protective measures are operational.
Required evidence: Incident investigation → pipeline repair and testing → gas-free verification → assessment of affected equipment → restart authorisation.
Owner: Head of Operations, supported by Mechanical Integrity, Maintenance and the Ex Responsible Person.
Measure: 100% of contractor activities near hazardous-fluid infrastructure subject to appropriate identification, authorisation and protection arrangements.
▶️ TODAY'S Ex QUESTION
“Could a failure outside our classified hazardous areas create an explosive atmosphere inside them—or somewhere we have never classified?”
Consider gas pipelines, solvent-transfer lines, storage connections, temporary hoses and utility systems.
The absence of a hazardous-area classification does not mean that an uncontrolled release cannot create an explosion hazard.
⚡ DAILY Ex | CLOSING THOUGHT
Today's Greek investigation and the historical Fawley refinery case demonstrate a fundamental principle.
Explosion protection begins before an explosive atmosphere forms.
Containment integrity, mechanical condition, operating discipline and contractor control are essential preventive barriers.
Hazardous-area classification and certified Ex equipment address defined aspects of the remaining risk.
But neither can replace effective control of flammable-material releases.
For Heads of Operations, the challenge is to maintain every barrier throughout the operating lifecycle.
The safest explosive atmosphere is the one that never forms.
That is Operational Ex.