Estuary location
The terminals are on the Thames estuary in Essex, not inside Greater London, so site access involves road transfers from the capital.
London · IECEx
IECEx Mobile Phone in London
The Port of London Authority has jurisdiction on the tidal Thames, and the London Fire Brigade is the statutory fire and rescue service for Greater London, so riverside and fire-safety rules involve separate bodies. Gas network and utility sites add smaller classified areas. If you are specifying an IECEx mobile phone for London and the Thames, this page covers the markings, the approvals and the current certification status of the IS-04Z1.
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 topicIECEx
DeviceMobile Phone
RouteSpecification
WhereLondon
Short answer. The SAMS IS-04Z1 is the intrinsically safe smartphone covered here for London and the Thames: 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. An operator's own vendor approval is a separate step. Certification status. Place facts reviewed October 2026.
At a glance · IECEx
Checklist: IECEx mobile phone for London and the Thames
| 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 | London and the Thames: Fuel storage terminals, Marine jetties, Road tanker loading | Classified by the site operator |
Product · London
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 London. 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 site · London and the Thames
London and the Thames: where the IS-04Z1 would work
Who operates there and which kinds of classified area a handset would meet, from the SAMS site research.
Operators and companies on site
- Greenergy
- Shell
- Navigator Terminals
Classified areas to expect
- Fuel storage terminals
- Marine jetties
- Road tanker loading
- Gas network sites
Local conditions · London and the Thames
Conditions in London and the Thames that affect handheld equipment
Thames Oilport
The former Coryton refinery, which stopped refining in 2012 after Petroplus collapsed, became a fuel import terminal. Greenergy holds two thirds and Shell one third after Greenergy bought Vopak's share.
Field notes · London and the Thames
More about London and the Thames that matters for portable equipment
London and the Thames: geography and layout
London stands on the River Thames at the head of a 50 mile tidal estuary down to the North Sea, with 9.14 million residents in 2025 and a metropolitan area of 15.4 million.
London and the Thames: background
The Port of London expanded downstream in the 18th and 19th centuries, and the Underground, the world's first urban rail network, was created to ease traffic congestion.
London and the Thames: people and language
London's diverse communities speak over 300 languages, so site teams are multilingual, though safety documentation is usually in English.
London and the Thames: climate and equipment wear
London has a temperate oceanic climate with about 600 mm of rain a year but 109.6 rainy days, so showers are frequent although annual totals are low.
The term · IECEx
What “IECEx” means for a smartphone
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 London and the Thames. London's fuel terminals sit in a global supply chain of tanker operators, inspectors and specialist contractors, many familiar with IECEx documents. The aim is a certificate of conformity plus a schedule of conditions that a terminal engineer could review against a particular tank, jetty or loading rack. It is not yet available.
The route · specification
Specifying an IECEx mobile phone for London
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 · London
Frequently asked questions
Can we buy an IECEx mobile phone in London today?
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.
What does an IECEx mobile phone in London cost?
There is no list price yet. SAMS gives indicative pre-launch pricing in writing, against a stated quantity and site, and does not commit to a lead time before certification completes.
Does the IS-04Z1 hold an IECEx certificate?
No. The IECEx certificate is in progress and has not been issued. SAMS will publish the number when it exists.
Which areas at London and the Thames would use it?
Likely candidates are fuel storage terminals, marine jetties, road tanker loading, gas network sites. Which areas are classified, and to what zone, is set by the site operator's own area classification drawings.
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.
Does London's weather matter for handheld devices?
A temperate oceanic climate means mild temperatures but frequent light rain, on about 110 days a year. Typically devices used outdoors need good water ingress protection and users check ratings against site conditions, especially on the tidal Thames.
How should I plan equipment deliveries to London?
Deliveries typically arrive by road or air, and the congested metropolitan area calls for scheduled slots and extra time. Confirm customs treatment for imported electronics and any site access or gate checks with the client.
Why does travel matter for terminal work near London?
The terminals are in Essex, so crews and equipment normally travel by road from the capital, and site access follows each operator's induction and permit rules. Plan time for sign-in, safe-area handover and device checks. Confirm the current access arrangements with the terminal operator.
Related guides
Keep exploring
Other guides for London, other places in United Kingdom, and the pages behind them.
Explosion-Proof Mobile Phone in LondonSame place, different guide
Intrinsically Safe Mobile Phone Distributor in LondonSame place, different guide
Rugged Mobile Phone Distributor in LondonSame place, different guide
ATEX and IECEx Mobile Phone in LondonSame place, different guide
Industrial Mobile Phone in LondonSame place, different guide
Ex-Proof Mobile Phone Distributor in LondonSame place, different guide
ATEX and IECEx Mobile Phone Distributor in Northern IrelandElsewhere in United Kingdom
ATEX and IECEx Mobile Phone Distributor in NorwichElsewhere in United Kingdom
ATEX and IECEx Mobile Phone Distributor in EnglandElsewhere in United Kingdom
ATEX and IECEx Mobile Phone Distributor in ScotlandElsewhere in United Kingdom
United Kingdom market guideCertification route and regulators
All guides for United KingdomEvery route we cover
Certification statusWhat is in progress
Enquiry · London and the Thames
Ask about the IS-04Z1 for London and the Thames, 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.
Enquiry · London and the Thames
Launching Q4 2026
Planning for London?
Name the site and the operator and we will send what is available before launch.