Operating refineries
Reported capacities are roughly 270,000 barrels a day at ExxonMobil's Fawley on Southampton Water, about 296,000 at Stanlow in Cheshire and about 221,000 at Phillips 66's Humber site in North Lincolnshire.
England hosts three of the UK's four operating refineries, Fawley, Stanlow and Humber, with Pembroke in Wales the fourth. Classified areas also occur at fuel terminals, gas networks and chemical sites. Lindsey stopped refining in 2025. Distribution partners for England are being identified ahead of the Q4 2026 launch of the IS-04Z1.
Pre-launch · certification in progress · Launching Q4 2026
Short answer. England has no appointed SAMS distributor yet: the IS-04Z1 is pre-launch (certification in progress, no certificate issued, launch planned for Q4 2026), and distributor applications are open.
Where things stand: the IS-04Z1 has not launched, and none of its four certification routes has produced a certificate yet. A buyer's engineering review is separate from the certificate. Certification status. Place facts reviewed October 2026.
| Check | What to look for | IS-04Z1 today |
|---|---|---|
| Certificate of conformity | Number checkable on the IECEx online register | In progress; not issued |
| Standards edition | The IEC 60079 edition the certificate cites | Stated on the certificate when issued |
| Schedule of conditions | Limits of use, batteries and accessories | Published with the certificate |
| Where it applies | England: Marine oil jetties, Petrochemical units, Refinery process units | Classified by the site operator |

An intrinsically safe Android smartphone designed for Zone 1 and Zone 21 hazardous areas in England. It is pre-launch: IECEx, ATEX and NEC 500 certification is in progress ahead of the Q4 2026 launch.
The companies on site and the hazardous-area types a handset is likely to meet there.
Reported capacities are roughly 270,000 barrels a day at ExxonMobil's Fawley on Southampton Water, about 296,000 at Stanlow in Cheshire and about 221,000 at Phillips 66's Humber site in North Lincolnshire.
Lindsey closed in 2025 after owner Prax became insolvent; Phillips 66 agreed in January 2026 to acquire assets but said it will not restart it as a standalone refinery.
DSEAR duties fall on employers and the self-employed and also protect members of the public who may be put at risk by work activity, so contractors share responsibility with site owners.
In Great Britain, the 2016 EPS Regulations implement the ATEX equipment directive, and the UK government has extended recognition of goods meeting EU requirements, including CE marking, indefinitely beyond 2024 for many products, in force from 1 October 2024.
The Dangerous Substances and Explosive Atmospheres Regulations 2002, known as DSEAR, require employers to control risks to safety from fire, explosion and substances corrosive to metals in the workplace.
Employers must also prepare plans for accidents and emergencies and make sure staff are informed and trained to deal with dangerous-substance risks, which is why site inductions usually cover equipment rules.
IECEx is the international scheme for certifying equipment used in explosive atmospheres. A certificate of conformity is issued by an accredited certification body against a specific edition of the IEC 60079 standards and carries a schedule of conditions of safe use. It is not a legal requirement in most countries on its own, but many national schemes accept it as the technical basis.
The IECEx certificate for the IS-04Z1 is in progress and has not been issued. The marking target is Ex ib IIC T4, the intrinsic safety concept for Zone 1 gas with the hardest gas group (IIC) and a 135 °C temperature class.
In England. England's refineries, marine jetties and petrochemical units draw in international EPCs and turnaround contractors, many of whom hold IECEx-based documentation. The aim is a certificate of conformity and a schedule of conditions that can be read against a particular area, once certification is complete. At present that paperwork is still in progress.
A distributor for England would carry the IS-04Z1 after certification completes; the Q4 2026 launch is the planning date and no appointment has been made. SAMS reviews applicants one by one and prefers companies with their own Ex-competent technical and service staff, since certified devices must not be repaired outside approved channels.
No. Nothing can be bought or taken into a classified area today: certification is in progress and launch is planned for Q4 2026. What is available now is the datasheet, the written certification schedule and evaluation units for safe-area use.
No price is published. While certification is in progress there is no list price and no committed lead time, and a supplier quoting a firm figure for an uncertified Ex handset is promising something it cannot stand behind. Indicative pre-launch pricing is issued in writing against a stated quantity and site.
No. The IECEx certificate is in progress and has not been issued. SAMS will publish the number when it exists.
Likely candidates are refinery process units, fuel terminals and tank farms, marine oil jetties, petrochemical units. Which areas are classified, and to what zone, is set by the site operator's own area classification drawings.
Apply through the distributor page with your company details and the territory you cover. SAMS reviews applications company by company and has not yet granted a territory for England.
COMAH applies to major-hazard sites such as large chemical and fuel storage establishments and adds management duties on top of DSEAR. Each operator typically sets its own rules for portable electronics, so check the site's permit and induction requirements.
The Dangerous Substances and Explosive Atmospheres Regulations 2002 require employers to classify hazardous areas and avoid ignition sources. Equipment choice is then based on the zone, gas group and temperature class, so ask the site for its hazardous-area register.
Guidance says CE marking is recognised alongside UKCA for Great Britain, with the recognition period currently running to 31 December 2027, and that date may change. Buyers should check the current gov.uk guidance and ask their operator's procurement team what evidence they require.
Related guides for England and for United Kingdom.
Send the site, zone and gas group and roughly how many handsets. We reply by email with the datasheet and the certification schedule.
Tell us the zone, gas group and operator. We will send the datasheet and the certification schedule.