United Kingdom: rules and approvals
Great Britain applies SI 2016 No. 1107, the UK version of the ATEX rules, so equipment for explosive atmospheres is assessed by UK approved bodies and carries UKCA marking and a body number.
United Kingdom · UKEX
UKEX Mobile Phone in United Kingdom
The IS-04Z1 is an intrinsically safe Android smartphone designed for Zone 1 and Zone 21 work, from a North Sea deck to a gas governor kiosk at the end of a street. This page explains what to look for in a UKEX mobile phone for United Kingdom, and where the IS-04Z1 stands against that list today.
Pre-launch · certification in progress · Launching Q4 2026
Marking targetEx ib IIC T4Intrinsic safety, Zone 1 / 21 design target · certification in progress
AvailabilityQ4 2026via authorised distributors
Search topicUKEX
DeviceMobile Phone
RouteSpecification
WhereUnited Kingdom
Short answer. The SAMS IS-04Z1 is the intrinsically safe smartphone covered here for United Kingdom: pre-launch, designed for Zone 1 and Zone 21 (marking target Ex ib IIC T4), with certification in progress and no certificate issued.
Where things stand: the IS-04Z1 has not launched, and none of its four certification routes has produced a certificate yet. An operator's own vendor approval is a separate step. Certification status. Place facts reviewed October 2026.
At a glance · UKEX
Checklist: UKEX mobile phone for United Kingdom
| Check | What to look for | IS-04Z1 today |
|---|---|---|
| UK marking | UKCA mark and a UK approved body | In progress; not issued |
| Regulations | UKEX 2016 regulations | The applicable route in Great Britain |
| EU certificate | Does not cover Great Britain on its own | Separate UK route |
| Where it applies | United Kingdom: Aberdeen, St Fergus, Sullom Voe | Classified by the site operator |
Product · United Kingdom
The product behind this search: the SAMS IS-04Z1.
SAMS IS-04Z1
An intrinsically safe Android smartphone designed for Zone 1 and Zone 21 hazardous areas in United Kingdom. It is pre-launch: IECEx, ATEX and NEC 500 certification is in progress ahead of the Q4 2026 launch.
- IP68 sealed
- 4,000 mAh battery
- 50 MP camera
- Android 16
- Zone 1 / Zone 21 design target
The market · United Kingdom
Where an Ex phone is used in United Kingdom
Operators and classified areas drawn from the SAMS United Kingdom market guide.
Operators, EPCs and contractors
- Harbour Energy
- One of the largest producers on the UK continental shelf.
- Adura
- Shell and Equinor joint venture with interests in Mariner, Clair, Shearwater and Buzzard (operators vary by field).
- Ithaca Energy
- Operator and partner across central and northern North Sea hubs.
- EnQuest
- Operates Magnus and the Sullom Voe terminal.
- Serica Energy
- Operates the Bruce, Keith and Rhum fields.
- Wood
- Aberdeen engineering, maintenance and shutdown contractor.
Industrial areas and sites
- Aberdeen
- Supply base, heliports and the offshore contractor market.
- St Fergus
- Reception terminal for northern North Sea gas pipelines.
- Sullom Voe
- Shetland oil and gas terminal with export jetties.
- Grangemouth
- INEOS petrochemical complex and the fuels import terminal.
- Fawley
- ExxonMobil refinery and petrochemicals on Southampton Water.
- Stanlow
- Refinery and the Mersey chemical corridor.
Field notes · United Kingdom
More about United Kingdom that matters for portable equipment
United Kingdom: geography and layout
Historically most UK gas came from Morecambe Bay and the Southern North Sea off East Anglia and Lincolnshire, both now in decline, while oil comes mainly from the Central Graben of the North Sea.
United Kingdom: industry on the ground
Around 39 billion barrels of oil equivalent have been extracted from the UK Continental Shelf over four decades, and Brent crude from the British North Sea remains a major international price benchmark.
United Kingdom: rules and approvals
The UK government has legislated to keep recognising CE marking alongside UKCA for a range of product regulations, so check whether the route applies to your product category.
The term · UKEX
What “UKEX” means for a smartphone
In Great Britain, equipment for potentially explosive atmospheres falls under the Equipment and Protective Systems Intended for Use in Potentially Explosive Atmospheres Regulations 2016 (UKEX), with UKCA marking and UK approved bodies. Northern Ireland continues to follow the EU regime. A device with an EU-type examination certificate still needs the UK route completed separately.
UKEX is one of the four routes in the IS-04Z1 certification programme. It is in progress and no UK certificate has been issued.
In United Kingdom. In the UK the regime is UKEX, a separate route from EU ATEX, and a reviewer at an installation or terminal would ask which approval the handset carries for the area. For the IS-04Z1 UKEX certification is in progress and no certificate exists, so a UK buyer can only review the schedule and datasheet today, with the duty holder deciding acceptance.
The route · specification
Specifying a UKEX mobile phone for United Kingdom
A short checklist for anyone writing or reviewing the specification, with the IS-04Z1 status against each point.
Check on the paper
- Marking
- Equipment group, category, protection concept, gas group and temperature class, matched to the area drawing.
- Certificate and schedule
- A certificate number, issuing body and the schedule of conditions, not a brochure claim.
- Standards edition
- The IEC 60079 or national standard edition the certificate was issued against.
Check for the IS-04Z1
- Marking target
- II 2 G Ex ib IIC T4: a target, not yet a certificate.
- Certificate status
- IECEx, ATEX, UKEX and NEC 500 in progress; none issued.
- Operator approval
- Separate from the certificate and handled with the site operator.
Questions · United Kingdom
Frequently asked questions
Can we buy a UKEX mobile phone in United Kingdom today?
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.
What does a UKEX mobile phone in United Kingdom cost?
SAMS has not published a price. Any figure you are offered for an uncertified Ex phone should be treated with caution; written indicative pricing is available for a defined quantity and site.
Will the IS-04Z1 carry the UKEX route?
UKEX is part of the certification programme and is in progress. No UK certificate has been issued.
Which sites in United Kingdom does this cover?
The market guide for United Kingdom covers Aberdeen, St Fergus, Sullom Voe, Grangemouth, among others. Site-level pages are linked below.
Is intrinsically safe the same as explosion proof?
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.
Do UK offshore installations have different rules for portable devices?
Offshore installations typically add their own permit-to-work, helicopter-transport and zone rules on top of UK law, and operators often keep lists of approved portable devices. Ask the duty holder or contractor for its approved-equipment procedure before sending devices offshore.
How does UKCA marking relate to ATEX for new equipment?
Equipment for Great Britain can be placed on the market under UKCA, using SI 2016 No. 1107 and a UK approved body, or under CE. Manufacturers usually keep both routes open if they sell in the EU too. Confirm the current labelling and importer details requirements with a UK approved body.
Can photographs from the handset support a permit or inspection record?
The 50 MP camera with PDAF is designed to give photographs sharp enough to act on, and GNSS can record where each was taken. Whether they are accepted as permit evidence is a matter for your duty holder and permit-to-work procedure.
Related guides
Keep exploring
More on United Kingdom, and on other places in United Kingdom.
Explosion-Proof Mobile Phone Distributor in United KingdomSame place, different guide
Ex-Proof Mobile Phone in United KingdomSame place, different guide
Rugged Mobile Phone Distributor in United KingdomSame place, different guide
Intrinsically Safe Mobile Phone Supplier in United KingdomSame place, different guide
Hazardous Area Mobile Phone Supplier in United KingdomSame place, different guide
Industrial Mobile Phone Distributor in United KingdomSame place, different guide
United Kingdom market guideCertification route and regulators
All guides for United KingdomEvery route we cover
Certification statusWhat is in progress
Enquiry · United Kingdom
Ask about the IS-04Z1 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.
Enquiry · United Kingdom
Launching Q4 2026
Planning for United Kingdom?
Tell us the zone, gas group and operator. We will send the datasheet and the certification schedule.