Regulation
DSEAR applies, and the UK recognises CE marking alongside UKCA for Great Britain, with the recognition period currently running to 31 December 2027.
HSE lists dangerous substances as including solvents, paints, varnishes, flammable gases such as LPG, dusts from machining, sanding and foodstuffs, pressurised gases and substances corrosive to metal. Lindsey stopped refining in 2025. If you are specifying a rugged smartphone for England, this page covers the markings, the approvals and the current certification status of the IS-04Z1.
Pre-launch · certification in progress · Launching Q4 2026
Short answer. The SAMS IS-04Z1 is the intrinsically safe smartphone covered here for England: pre-launch, designed for Zone 1 and Zone 21 (marking target Ex ib IIC T4), with certification in progress and no certificate issued.
For the record, no certificate exists for the IS-04Z1 today. The programme is under way ahead of a Q4 2026 launch. Operator approval runs on its own timeline. Certification status. Place facts reviewed October 2026.
| Check | What to look for | IS-04Z1 today |
|---|---|---|
| Ingress protection | IP65 to IP68 sealing | IP68 design |
| Drop and shock | A stated drop height onto concrete | Specification on request |
| Explosion protection | A separate certificate and marking | In progress; not issued |
| Where it applies | England: Refinery process units, Fuel terminals and tank farms, Marine oil jetties | 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.
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.
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.
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.
A rugged phone is built to survive water, dust, drops and rough handling, usually rated by an IP code and a drop specification. Ruggedness is an environmental property: it says nothing about whether a phone may be used where flammable gas or dust is present. That is decided by explosion-protection certification and marking.
The IS-04Z1 combines both: an IP68 sealed rugged build and a design for Zone 1 and Zone 21 (marking target Ex ib IIC T4). The explosion-protection certificates are in progress and none has been issued.
In England. England's refineries sit on estuaries and coasts, such as Southampton Water, the Mersey area and the Humber, where rain, damp, wind and salt air are typical rather than extreme heat. An IP68 rating helps with wet and dusty work and accidental drops, but it does not provide explosion protection and is separate from any Ex certification.
A short checklist for anyone writing or reviewing the specification, with the IS-04Z1 status against each point.
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.
It is designed to IP68 sealing, with glove-friendly controls. Ruggedness is not explosion protection: that depends on the certificates, which are 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.
Not exactly. Explosion proof is a broad everyday term; intrinsic safety is one protection concept, which limits energy so ignition cannot occur. Flameproof (Ex d) is a different concept that contains an explosion. The IS-04Z1 is intrinsically safe by design.
The Health and Safety Executive, and in some premises local authorities, enforce DSEAR. They expect employers to carry out a risk assessment, classify areas and control ignition sources. Ask your client which assessments and records apply to your work.
Yes. HSE lists dusts from machining, sanding and foodstuffs among dangerous substances, so combustible dust areas can be classified in the same way as gas areas. Check whether your task is near flour, wood, metal or grain handling and ask for the zone classification.
England hosts three of the UK's four operating refineries: Fawley, Stanlow and Humber. Fuel terminals, gas networks and chemical sites also contain classified areas. Lindsey stopped refining in 2025. Each operator assesses its own zones, so confirm requirements with the site operator for the specific site.
Related guides for England and for United Kingdom.
Tell us what you need to equip and where. The SAMS team answers by email with the datasheet and where each certification route stands.
Tell us the zone, gas group and operator. We will send the datasheet and the certification schedule.