St Fergus
The terminal handles roughly a quarter of Britain's gas and sends natural gas liquids to Mossmorran. It is owned by North Sea Midstream Partners, with Shell, Esso and others as tenants.
In 2022 oil and gas extraction contributed an estimated 25.2 billion pounds of gross value added, about 11.8% of Scottish GDP, which keeps offshore and terminal work a major source of hazardous-area activity. Several of these sites are in transition. This page explains what to look for in an IECEx smartphone for Scotland, and where the IS-04Z1 stands against that list today.
Pre-launch · certification in progress · Launching Q4 2026
Short answer. The SAMS IS-04Z1 is the intrinsically safe smartphone covered here for Scotland: pre-launch, designed for Zone 1 and Zone 21 (marking target Ex ib IIC T4), with certification in progress and no certificate issued.
Status: pre-launch. IECEx, ATEX, UKEX and NEC 500 certification is in progress and no certificate has been issued; launch is planned for Q4 2026. Operator approval runs on its own timeline. 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 | Scotland: Petrochemical process units, Natural gas liquids plant, Gas terminals | Classified by the site operator |

An intrinsically safe Android smartphone designed for Zone 1 and Zone 21 hazardous areas in Scotland. It is pre-launch: IECEx, ATEX and NEC 500 certification is in progress ahead of the Q4 2026 launch.
A short profile of the site and the kinds of classified area that matter for portable equipment.
The terminal handles roughly a quarter of Britain's gas and sends natural gas liquids to Mossmorran. It is owned by North Sea Midstream Partners, with Shell, Esso and others as tenants.
The refinery stopped processing crude in 2025 and is becoming a fuels import terminal, while the adjacent INEOS complex continues to run the UK's last operating ethylene cracker.
Grangemouth Refinery on the Firth of Forth began operating in 1924 and was the only crude oil refinery in Scotland, but it has now closed; its neighbouring petrochemical complex dates from 1951.
Of about 25,000 jobs directly dependent on offshore oil and gas in 2019, 98% were in Aberdeen and Aberdeenshire, so equipment demand and contractor skills cluster in the north-east.
Scottish waters hold the largest oil resources in Western Europe; oil was discovered in the North Sea in 1966 and the first year of full production was 1976.
Hydrocarbon production is expected to fall to about a third of 2019 levels by 2035, and a global decommissioning market of around 67 billion pounds over ten years is forecast, so abandonment work is growing.
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 Scotland. Scotland's large process and gas sites attract international EPCs, turnaround specialists and, at Mossmorran, decommissioning contractors who may arrive with IECEx documentation. The aim is a certificate of conformity and a schedule of conditions that an engineer can read against a specific area. At present it is still in progress.
A short checklist for anyone writing or reviewing the specification, with the IS-04Z1 status against each point.
Not yet. The IS-04Z1 is pre-launch and its certification is still in progress ahead of a Q4 2026 launch. No unit goes into a classified area before the certificate covering it exists. The datasheet, the certification schedule and safe-area evaluation units are available now.
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.
No. The IECEx certificate is in progress and has not been issued. SAMS will publish the number when it exists.
Likely candidates are petrochemical process units, natural gas liquids plant, gas terminals, fuel import and storage terminal. 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.
Offshore installations in the UK sector normally expect equipment certified for explosive atmospheres under UK rules, and CE-marked ATEX equipment has been widely accepted under transitional arrangements. Operators also add their own policies, so confirm the accepted marking and any site-specific approvals with the duty holder.
Decommissioning of ageing North Sea installations is forecast to grow as production declines, and it involves cleaning, cutting and removal of hydrocarbon systems in classified areas. Teams often need portable communications that are certified for the area, so confirm requirements with the operator or decommissioning contractor.
The Grangemouth petrochemical complex on the Firth of Forth, Mossmorran in Fife and the St Fergus gas terminal in Aberdeenshire. Several are in transition, so activity may be shifting. Confirm current requirements with the site operator before planning equipment.
Related guides for Scotland and for United Kingdom.
Share the site details and quantity. You will get the datasheet and the certification schedule back by email; pricing is indicative only until launch.
Name the site and the operator and we will send what is available before launch.