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Author: Veress Árpád · Explosion-protection expertDAILY Ex - 19 OCTOBER 2026
Today's focus: When the process changes, are the protective barriers still effective? New industrial incidents in Romania, the United States and India, a South Korean enforcement initiative beginning today, and developments in Ex standards and inspection technology. Today's message for Heads of Operations: An Ex certificate cannot compensate for an uncontrolled process hazard.
⚡ DAILY Ex | 19 OCTOBER 2026
Explosion Protection | Operational Ex | Global Watch
Today's focus: When the process changes, are the protective barriers still effective?
New industrial incidents in Romania, the United States and India, a South Korean enforcement initiative beginning today, and developments in Ex standards and inspection technology.
Today's message for Heads of Operations: An Ex certificate cannot compensate for an uncontrolled process hazard.
▶️ 1. ROMANIA - EXPLOSION AT STARCH FACTORY
NEW INCIDENT | Medgidia - 18 October 2026
An explosion followed by a fire injured two workers at a starch-processing factory in Medgidia, Romania.
Emergency services initially reported an explosion near a grain bunker. A subsequent police account suggested that gas accumulation around a starch filter may have been involved during processing.
The precise mechanism remains under investigation. It is not yet established that this was a combustible-dust explosion.
Why it matters operationally
Starch processing can involve combustible dust, thermal processes, filtration and enclosed equipment.
The investigation must distinguish between a dust-cloud deflagration, gas-related event, pressure failure or another mechanism.
Management action: Verify the explosion-protection assessment for filters, bunkers and associated processing equipment, including abnormal operating conditions.
▶️ 2. USA - MACHINE EXPLOSION AT WOOD-PROCESSING FACILITY
NEW INCIDENT | Ohio - 18 October 2026
Firefighters responded to a reported machine explosion and subsequent fire at the Circleville facility of https://www.awf.com/.
Debris was found outside a rear processing building, and several fire departments attended.
No injuries were reported. The cause remains under investigation.
Why it matters operationally
Wood-processing machinery can generate combustible dust and introduce mechanical ignition sources.
The relevant engineering questions concern bearings, overheating, foreign materials, dust extraction, explosion isolation and protection-system effectiveness.
Operational lesson: After an explosion, restarting unaffected-looking connected equipment requires assessment of possible propagation and damage.
https://sciotovalleyguardian.com/2026/10/18/machine-explosion-sparks-fire-at-circleville-wood-plant/
▶️ 3. SOUTH KOREA - NATIONAL FIRE AND EXPLOSION INSPECTIONS
NEW REGULATORY DEVELOPMENT | Announced 18 October
South Korea's Ministry of Employment and Labor has announced a national initiative following an increase in workplace fire and explosion fatalities.
The programme begins today, 19 October, with workplace self-inspections continuing until 30 October.
Targeted government inspections are scheduled for 2–13 November.
Authorities will examine hot work, flammable-gas monitoring, ventilation, electrostatic hazards, firefighting equipment and emergency exits.
Why it matters operationally
The programme moves beyond checking documentation.
Inspectors are expected to assess whether preventive measures are actually implemented.
Head of Operations action: Ask for evidence of barrier effectiveness, not simply completed inspection forms.
https://m.ajupress.com/view/20261018120470647
▶️ 4. SOUTH KOREA - NEW FINDINGS AFTER FATAL FACTORY FIRE
INVESTIGATION UPDATE | Bucheon - 17 October
Following the 16 October factory fire, investigators reported that flammable vapours generated during cleaning with paint thinner may have ignited.
The fire killed a firefighter and injured several other responders and workers.
Investigators found significant quantities of paint thinner and paint containers near the suspected origin.
The proposed ignition mechanism remains preliminary.
Why it matters operationally
Cleaning with solvents can generate an explosive atmosphere even when the activity is described as routine maintenance.
Operational lesson: Review ventilation, solvent quantities, equipment suitability and ignition-source control before authorising cleaning operations.
https://m.ajupress.com/view/20261017164311092
▶️ 5. INDIA - PAINT FACTORY FIRE SPREADS TO NEIGHBOURING FACILITIES
NEW INCIDENT | Indore - 18 October
A major fire began at a paint and chemical factory in Beta Industrial Park, spreading to two neighbouring facilities.
Firefighters brought the fire under control after several hours.
Reports indicated that stored paint and chemical containers contributed to its spread.
An electrical fault has been suggested as a possible initiating event, but the cause has not been established.
Why it matters operationally
Explosion and fire protection must consider escalation beyond the original equipment or building.
Management action: Review combustible inventories, storage arrangements, separation distances and emergency response assumptions.
▶️ 6. UK - ATEX DESIGNATED-STANDARDS UPDATE APPROACHING
REGULATORY WATCH | Proposed publication: 22 October
The UK government plans to update its designated standards for equipment intended for explosive atmospheres.
The proposal includes EN IEC 60079-28:2026, addressing protection of equipment and transmission systems using optical radiation.
The existing EN 60079-28:2015 reference is proposed to remain effective for presumption of conformity until 4 March 2028.
The new designation has not yet been published. https://assets.publishing.service.gov.uk/media/6ab3f7cea9c3d267bcccedd7/ds-0144-26-atex-proposal-to-amend.pdf
Why it matters operationally
Optical sensors, fibre-optic equipment and laser-based instruments require assessment of their potential ignition hazards.
Compliance lesson: GB designation, EU harmonisation and IEC publication are separate regulatory milestones.
▶️ 7. MANUFACTURER WATCH - IN-SERVICE CORROSION INSPECTION
TECHNOLOGY SPOTLIGHT | Existing certified product
The https://cygnus-instruments.com/product/cygnus-1-ex/ 1 Ex ultrasonic thickness gauge provides an example of inspection technology designed for hazardous areas.
The manufacturer's documentation identifies ATEX, IECEx and UKEX certification, including gas EPL Ga and dust EPL Db configurations.
Importantly, the operating instructions require battery replacement, charging and certain data connections to take place in a safe area. https://us.cygnus-instruments.com/wp-content/uploads/2025/12/Cygnus-1-Ex-Operating-Manual-ENIssue-8.pdf
Why it matters operationally
In-service thickness measurement can reduce shutdown requirements and improve mechanical-integrity monitoring.
However, Ex certification does not eliminate the need to follow the equipment's specific conditions of use.
▶️ 8. RESEARCH - HYDROGEN JET-FIRE BARRIERS
RECENT RESEARCH | October 2026
Research published in the Journal of Loss Prevention in the Process Industries examined gypsum, steel-sandwich and cross-laminated timber barriers exposed to hydrogen jet fires.
The study found significant differences in performance despite the barriers having the same nominal EI60 fire-resistance classification.
Why it matters operationally
A conventional fire-resistance classification does not automatically establish performance against a high-momentum hydrogen jet fire.
Engineering lesson: Protective barriers must be evaluated against the actual credible accident scenario.
https://doi.org/10.1016/j.jlp.2026.106078
▶️ OPERATIONAL Ex USE CASE
Restarting a dust collector after an abnormal pressure event
PRACTICAL |
A wood-processing plant experiences an abnormal pressure event inside its dust-collection system.
Production stops automatically.
Maintenance inspects the filter housing and replaces several damaged components.
The equipment appears operational.
Production wants to restart.
But what about the complete explosion-protection system?
Before restart, the responsible team must establish whether the event affected explosion vents, isolation devices, suppression equipment, connecting ductwork, sensors or structural integrity.
Replacing visibly damaged components does not demonstrate that the complete protection function has been restored.
Required decision: Engineering and Operations jointly verify the protection-system condition against the documented design basis and manufacturer requirements.
Owner: Head of Operations, supported by Maintenance and Ex Engineering.
Measure: No restart until safety-critical defects are resolved or otherwise demonstrably controlled and return-to-service authorisation is documented.
▶️ TODAY'S Ex QUESTION
“When an abnormal event occurs, who verifies that every affected explosion-protection barrier remains effective before production restarts?”
A machine can operate correctly while its explosion-protection system remains compromised.
The question is not simply whether the equipment runs.
The question is whether it can operate safely under the actual conditions.
DAILY Ex | CLOSING THOUGHT
Today's incidents demonstrate a recurring challenge.
Industrial equipment operates within an interconnected system of materials, processes, people and protective barriers.
A failure rarely respects the boundaries of an individual machine.
Operational Ex requires us to understand those connections, maintain the protection they depend on, and verify their effectiveness after every significant event.
A certificate establishes conformity. Operational responsibility keeps protection effective.