Regulation
DSEAR applies, and the UK recognises CE marking alongside UKCA for Great Britain, with the recognition period currently running to 31 December 2027.
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. 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.
For the record, no certificate exists for the IS-04Z1 today. The programme is under way ahead of a Q4 2026 launch. An operator's own vendor approval is a separate step. Certification status. Place facts reviewed October 2026.
| Check | What to look for | IS-04Z1 today |
|---|---|---|
| Protection concept | Flameproof (Ex d) or intrinsic safety (Ex i) | Intrinsic safety, level ib |
| Zone suitability | Zone 1 gas and Zone 21 dust | Design target for Zone 1 and 21 |
| Certificate | Number, issuing body and schedule of conditions | In progress; not issued |
| 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.
Who operates there and which kinds of classified area a handset would meet, from the SAMS site research.
DSEAR applies, and the UK recognises CE marking alongside UKCA for Great Britain, with the recognition period currently running to 31 December 2027.
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.
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.
COMAH 2015 is enforced by a joint Competent Authority: HSE, or the Office for Nuclear Regulation for nuclear sites, working with the Environment Agency in England, Natural Resources Wales or SEPA in Scotland.
Major-hazard sites fall under the Control of Major Accident Hazards Regulations 2015, with HSE publishing guidance and public information on establishments covered, so top-tier and lower-tier sites follow a further regime.
Employers must identify and classify areas where explosive atmospheres may occur and avoid ignition sources, for example from unprotected equipment, in those areas.
“Explosion proof” is the phrase most buyers use for equipment that may be taken into a classified hazardous area. Strictly, it covers several protection concepts: a flameproof enclosure (Ex d) contains an internal explosion, while intrinsic safety (Ex i) limits electrical energy so that an ignition cannot start. Phones are normally intrinsically safe, because a flameproof handset would be too heavy to carry all shift.
The IS-04Z1 uses intrinsic safety, with a marking target of Ex ib IIC T4, and is designed for Zone 1 and Zone 21. It is pre-launch, certification is in progress and no certificate has been issued.
In England. In English refinery and terminal language, 'explosion-proof' is used loosely for equipment suitable for Zone 1. The real concepts are flameproof Ex d for fixed apparatus and intrinsic safety for portable devices. At process units, tank farms and marine jetties the operator selects the concept per area, so the everyday phrase should never be taken as a specification.
Distribution of the IS-04Z1 is by authorised partners only, and SAMS has not yet granted a territory for England. Each application is reviewed on its merits. Because opening a certified Ex handset in an ordinary workshop invalidates its certificate, the partner must be able to support and service the device locally.
Not today. Until the certificates are issued the IS-04Z1 stays out of classified areas, and until launch there is nothing to purchase. You can ask for the datasheet and the certification schedule, or book a safe-area evaluation unit.
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.
It is intrinsically safe (marking target Ex ib IIC T4), which is the usual way to make a phone for hazardous areas. It is not a flameproof (Ex d) design, and certification is still in progress.
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.
Other guides for England, other places in United Kingdom, and the pages behind them.
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.