Sigma-HSE

Sigma-HSE We provide actionable solutions to ensure and maintain process safety in the work environment.

Sigma-HSE Ltd is a group of companies focused on the provision of technical services to industry in the fields of Health & Safety and the Environment. Our specialist testing laboratory in Wi******er generates test data on the flammability, explosivity and reactivity of dusts, liquids, gases and vapours. Our scientists and technicians are experts in this field and can quickly assess your dust testi

ng needs including Explosion Severity (Pmax and Kst, Minimum Explosive Concentration (MEC) and Limiting Oxygen Concentration (LOC)), Ignition Sensitivity (Minimum Ignition Energy (MIE), Minimum Ignition Temperature (MIT) and Layer Ignition Temperature (LIT), Thermal Stability (Bulk Powder Diffusion / Aerated Bulk Powder Diffusion Cell, Air Over Layer and Basket Safe Storage Temperature Testing) as well as Electrostatic Hazards (Powder Volume Resistivity and Charge Relaxation Time). Our Liquids, Gas and Vapour testing facility features tests such as Liquid Conductivity, Lower & Upper Flammable Limits (LEL / UEL), Flashpoint and Auto Ignition Temperature (AIT). All laboratory testing is rigorously controlled to comply with the latest versions of European and International test standards. Supporting the laboratory and providing on-site support is our dedicated team of Process Safety Consultants working from our offices in Europe, Asia and the Middle East. Our range of specialist technical safety assessments including Comprehensive Safety Audits, HAZOP, DSEAR / ATEX, HAC, QRA, EPD, LOPA, SIL as well as training, and incident investigation.

Gas Leak and Fire at SK Hynix Semiconductor Plant Exposes Workers in South KoreaA fire and subsequent fluorine gas leak ...
03/06/2026

Gas Leak and Fire at SK Hynix Semiconductor Plant Exposes Workers in South Korea

A fire and subsequent fluorine gas leak at an SK Hynix semiconductor manufacturing facility in Cheongju, South Korea, resulted in multiple workers requiring medical evaluation on June 1st, highlighting the significant process safety challenges associated with advanced semiconductor production.

According to reports, the incident began when a fire broke out inside the semiconductor plant, leading to the release of fluorine gas. Emergency responders quickly contained the fire, preventing further escalation and allowing plant operations to continue while authorities investigated the cause.

Initial reports indicated that seven workers were sent to an on-site medical clinic for assessment following exposure to the gas. While no fatalities were reported, the incident prompted an emergency response and notification of relevant authorities.

SK Hynix, one of the world's largest semiconductor manufacturers, confirmed that the fire was rapidly brought under control and stated that an investigation is underway in cooperation with regulators and emergency services.

Gas leaks in semiconductor plants present unique hazards because cleanroom environments often contain interconnected networks of chemical delivery systems, pressurised gas cylinders, and highly specialised processing equipment.

Key safety measures for semiconductor manufacturing facilities include:

🔹 Continuous toxic gas detection and alarm systems
🔹 Automated gas isolation and emergency shutdown systems
🔹 Secondary containment and leak mitigation infrastructure
🔹 Ventilation and exhaust systems designed for hazardous gases
🔹 Routine inspection and maintenance of gas delivery networks
🔹 Real-time environmental and atmospheric monitoring
🔹 Emergency response procedures for chemical releases and fires
🔹 Specialised worker training for hazardous materials handling

You can read more about this incident here: https://www.reuters.com/world/asia-pacific/gas-leak-sk-hynix-chip-factory-injures-six-people-yonhap-reports-2026-06-01/

Do you know what to do after an incident?Knowing how to respond after an incident is just as important as preventing one...
03/06/2026

Do you know what to do after an incident?

Knowing how to respond after an incident is just as important as preventing one.

From immediate response and reporting, to investigation and corrective actions, following the right steps is essential to ensure legal compliance and protect your business.

Make sure your team is prepared for what comes next, not just what could go wrong.

Find out how Sigma-HSE can assist you after an incident - get in touch today: sigma-hse.com/contact

Major Fireworks Facility Explosion Rocks Malta, Causes Widespread DamageA powerful explosion at a fireworks manufacturin...
02/06/2026

Major Fireworks Facility Explosion Rocks Malta, Causes Widespread Damage

A powerful explosion at a fireworks manufacturing facility in the Salini area of Naxxar, Malta, sent shockwaves across the island on the morning of June 1st, causing structural damage several kilometres away and triggering a major emergency response.

The force of the explosion caused damage well beyond the immediate site. In nearby Qawra, several kilometres from the facility, residents reported shattered windows and damage to buildings, with broken glass scattered across roads and pavements. Some reports indicated that entire rows of windows were damaged by the blast wave.

Emergency services, including police, firefighters, and civil protection teams, rapidly responded to the scene. Drone footage later revealed extensive damage at the fireworks facility as emergency crews worked to secure the area and assess hazards.

Fireworks manufacturing and storage facilities present some of the highest explosion risks in industry due to the presence of large quantities of energetic materials capable of rapid combustion and detonation. Even a localised ignition can generate powerful blast waves capable of causing extensive off-site damage.

Key safety measures for fireworks manufacturing and storage operations include:

🔹 Strict segregation of explosive compositions and finished products
🔹 Quantity limitations for pyrotechnic materials within production areas
🔹 Temperature, humidity, and ignition source control
🔹 Anti-static flooring, grounding, and spark-resistant equipment
🔹 Blast-resistant building design and safety separation distances
🔹 Remote handling of high-risk pyrotechnic operations
🔹 Routine inspections of storage magazines and production facilities
🔹 Comprehensive emergency response and evacuation planning

You can read more about this incident here: https://lovinmalta.com/news/local/massive-salini-explosion-shakes-malta-heres-everything-we-know-so-far/

A deadly explosion and fire at a Hanwha Aerospace facility in Daejeon, South Korea, has killed five workers and injured ...
01/06/2026

A deadly explosion and fire at a Hanwha Aerospace facility in Daejeon, South Korea, has killed five workers and injured two others, marking the latest in a series of fatal incidents at the defence manufacturer's site.

The explosion occurred at approximately 10:59 a.m. inside a laboratory where seven employees were conducting cleaning operations involving explosive materials. The blast triggered a fire that rapidly spread through the work area, killing five workers at the scene. Two employees escaped before the fire intensified, though one suffered severe burns over much of the body and remains hospitalised.

Emergency services received more than 30 calls reporting a loud explosion and heavy smoke. Around 100 firefighters, supported by multiple fire engines and specialist equipment, responded to the incident. The fire was brought under control within 50 minutes and fully extinguished shortly after 1:00 p.m.

Authorities reported that the victims' remains were severely damaged, complicating identification efforts. Investigators are working to determine the cause of the explosion, although access to information is limited because the facility is designated as a restricted national security site due to its defence-related activities.

Key safety measures for facilities handling explosive and energetic materials include:

🔹 Strict segregation and quantity control of explosive substances
🔹 Specialised cleaning and maintenance procedures for explosive-contaminated equipment
🔹 Intrinsically safe tools and anti-static controls
🔹 Blast-resistant facility design and protective barriers
🔹 Remote handling and automated processing where feasible
🔹 Continuous monitoring for ignition sources and abnormal conditions
🔹 Comprehensive permit-to-work systems for maintenance activities
🔹 Emergency evacuation, firefighting, and explosion response planning

You can read more about this incident here: https://www.koreatimes.co.kr/southkorea/society/20260601/hanwha-aerospace-plant-explosion-kills-5-injures-2

Workplace safety should be every employer’s top priority.At Sigma-HSE, we break it down into three essential steps:1️⃣ P...
01/06/2026

Workplace safety should be every employer’s top priority.

At Sigma-HSE, we break it down into three essential steps:

1️⃣ Prepare - Identify potential incidents, accidents, or hazards through thorough risk assessments.

2️⃣ Prevent - Eliminate or reduce risks before they become real problems.

3️⃣ Protect - Safeguard your people, processes, facilities, and reputation from accidents, fires, or explosions.

Do you know the hidden dangers in your processes? Contact us today and take the first step toward protection: https://sigma-hse.com/contact/

Large Industrial Fire at UK Art Materials Factory Forces Resident EvacuationsA major industrial fire at the headquarters...
29/05/2026

Large Industrial Fire at UK Art Materials Factory Forces Resident Evacuations

A major industrial fire at the headquarters and manufacturing site of art materials company Daler-Rowney in Bracknell, England, triggered emergency evacuations and a large-scale firefighting response on May 25th amid concerns over hazardous chemicals stored inside the facility.

Royal Berkshire Fire and Rescue Service responded to reports of the blaze at approximately 3:00 p.m. at the company’s site on Peacock Lane, which houses manufacturing, warehousing, and office operations. More than a dozen fire engines attended the incident, with additional crews drafted in from neighbouring counties including Oxfordshire, Hampshire, Surrey, and Northamptonshire.

Authorities evacuated residents in part of the nearby Crutchley Wood area as a precaution, while police conducted door-to-door notifications to ensure public safety. Emergency rendezvous points were established for displaced residents, and people in surrounding areas were advised to remain indoors with doors and windows closed due to smoke and potential airborne contaminants.

Officials confirmed that no one was believed to be inside the building when the fire broke out. However, the factory reportedly contained multiple chemicals associated with paint, pigment, solvent, and paper manufacturing operations, raising concerns about hazardous smoke and escalation risks.

Key industrial fire safety measures for chemical and manufacturing facilities include:

🔹 Strict segregation and safe storage of flammable and reactive chemicals
🔹 Fire-resistant building design and compartmentalisation to limit fire spread
🔹 Automatic fire detection and suppression systems
🔹 Hazardous smoke and gas monitoring systems
🔹 Proper ventilation and explosion relief protections
🔹 Emergency evacuation planning for workers and surrounding communities
🔹 Routine inspection of electrical systems and ignition sources
🔹 Coordination with local emergency services for large-scale incident response

You can read more about this incident here: https://www.bbc.co.uk/news/articles/cn8pp0l0mggo

What Does a NEIRA Assessment Help Uncover?A NEIRA (Non-Electrical Ignition Risk Assessment) reviews potential non-electr...
29/05/2026

What Does a NEIRA Assessment Help Uncover?

A NEIRA (Non-Electrical Ignition Risk Assessment) reviews potential non-electrical ignition sources in your process. It then evaluates the likelihood of each source becoming an effective ignition source (having enough energy to ignite a flammable atmosphere).

Based on this analysis, practical measures are recommended to minimise or eliminate the risk from each identified source. The goal of a NEIRA assessment is to uncover all possible ignition sources within your process, helping you prevent fires and explosions before they occur.

Do you know all the ignition sources in your process? https://sigma-hse.com/consultancy/neira-assessment/

Chemical Explosion at Washington Paper Mill Leaves One Dead and Nine MissingA major industrial explosion at the Nippon D...
28/05/2026

Chemical Explosion at Washington Paper Mill Leaves One Dead and Nine Missing

A major industrial explosion at the Nippon Dynawave Packaging paper mill in Longview, Washington, on May 26th has left at least one person dead, nine others missing, and several more injured in one of the most serious chemical incidents in the U.S. pulp and paper sector in recent years.

The explosion occurred after the rupture of a large storage tank containing “white liquor,” a highly corrosive chemical mixture used in the paper pulping process. Authorities initially believed the tank held around 80,000 gallons, but later confirmed it contained approximately 900,000 gallons of the hazardous substance.

Emergency responders, including firefighters and hazardous materials teams, rushed to the scene as parts of the facility became structurally unstable. Recovery operations have been severely complicated by ongoing safety risks, with officials warning that the damaged tank remains unstable and could pose additional dangers to rescue crews.

At least nine people suffered injuries ranging from burns to inhalation exposure, including plant workers and a firefighter. Several victims remain in critical condition. Fire crews continue stabilisation and containment efforts while investigators work to determine the exact sequence of events leading to the catastrophic failure.

Key process safety measures for pulp and paper chemical operations include:

🔹 Rigorous inspection and integrity management of chemical storage tanks and pressure systems
🔹 Continuous monitoring of temperature, pressure, and corrosion conditions
🔹 Secondary containment systems to control hazardous chemical releases
🔹 Strict maintenance and shutdown procedures during high-risk operations
🔹 Emergency venting and pressure-relief protection systems
🔹 Hazardous gas detection and worker evacuation protocols
🔹 Structural risk assessments for aging industrial infrastructure
🔹 Comprehensive emergency response coordination with hazmat and firefighting teams

You can read more about this incident here: https://www.bbc.co.uk/news/articles/cj9ppm94xw9o

Do you have a question about process safety?Introducing Coffee with a Consultant - a confidential, no-pressure session w...
28/05/2026

Do you have a question about process safety?

Introducing Coffee with a Consultant - a confidential, no-pressure session where you can discuss your specific challenges with one of our process safety experts.

No sales pitch. No agenda. Just practical, expert insight tailored to your business.

These free 30-minute sessions will take place in July and will be offered on a first come, first served basis. Stay tuned - dates will be announced soon!

Each company is limited to one session, although colleagues are welcome to join. Visit our website for full eligibility details.

Find out more on our website: https://sigma-hse.com/coffee-with-a-consultant/

Toxic Chemical Explosion Threat Prompts Mass Evacuations in CaliforniaA major industrial emergency unfolded at the GKN A...
27/05/2026

Toxic Chemical Explosion Threat Prompts Mass Evacuations in California

A major industrial emergency unfolded at the GKN Aerospace facility in Garden Grove, California, after a pressurised tank containing approximately 7,000 gallons of methyl methacrylate (MMA) became unstable, raising fears of a catastrophic explosion and toxic chemical release.

The crisis began on May 15th, when firefighters responded to reports of an overheating industrial storage tank at the aerospace manufacturing site in Orange County. Emergency crews discovered the tank was bulging under pressure, a critical warning sign indicating the possibility of structural rupture or explosion.

Authorities evacuated approximately 40,000 residents across parts of Garden Grove, Anaheim, and Cypress, while more than a dozen schools were closed as emergency teams worked urgently to stabilise the situation.

Firefighters continuously cooled the exterior of the tank with water streams while hazardous materials specialists attempted to inject neutralising agents into the vessel. However, damaged and obstructed valves reportedly prevented controlled pressure relief operations.

To mitigate environmental impacts, crews constructed sand barriers to contain any potential chemical spill and prevent contamination of drainage systems and waterways. Drones were also deployed to remotely monitor tank temperatures and structural conditions.

Key chemical process safety measures include:

🔹 Pressure relief systems and redundant emergency venting mechanisms
🔹 Continuous temperature and pressure monitoring for storage vessels
🔹 Emergency cooling and inerting systems for reactive chemicals
🔹 Secondary containment barriers for spill mitigation
🔹 Hazardous materials emergency planning and mass evacuation protocols
🔹 Explosion-resistant storage tank design and separation distances
🔹 Remote monitoring technologies including drones and thermal imaging
🔹 Specialised firefighting foam systems for flammable liquid fires

You can read more about this incident here: https://www.nytimes.com/live/2026/05/22/us/chemical-leak-evacuation-orange-county

Address

Unit 2, Point, Moorside, Moorside Road
Wi******er
SO237RX

Opening Hours

Monday 9:30am - 6pm
Tuesday 9:30am - 6pm
Wednesday 9:30am - 6pm
Thursday 9:30am - 6pm
Friday 9:30am - 6pm

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+441962840570

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