West Thurrock
The terminal at West Thurrock, Essex, with about 86 tanks for petroleum products, chemicals and liquefied gas, was acquired in 2016 by Navigator Terminals, a Greenergy and Macquarie joint venture.
London · hazardous area
Hazardous Area Mobile Phone in London
London has no refinery, but Thames-side fuel terminals supply the capital: Thames Oilport on the former Coryton refinery site and the large West Thurrock terminal in Essex. 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. This page explains what to look for in a hazardous area mobile phone for London and the Thames, 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 topichazardous area
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.
Where things stand: the IS-04Z1 has not launched, and none of its four certification routes has produced a certificate yet. A buyer's engineering review is separate from the certificate. Certification status. Place facts reviewed October 2026.
At a glance · hazardous area
Checklist: hazardous area mobile phone for London and the Thames
| Check | What to look for | IS-04Z1 today |
|---|---|---|
| Zone | 0, 1 or 2 for gas; 20, 21 or 22 for dust | Designed for Zone 1 and Zone 21 |
| Gas group | IIA, IIB or IIC | IIC (target) |
| Area drawing | The operator's own classification drawing | Decided by the site operator |
| 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
What London and the Thames means for portable equipment
Estuary location
The terminals are on the Thames estuary in Essex, not inside Greater London, so site access involves road transfers from the capital.
Field notes · London and the Thames
More about London and the Thames that matters for portable equipment
London and the Thames: infrastructure
The Thames is tidal and London is vulnerable to flooding, a risk that has grown with rising high-water levels, which affects riverside and low-lying industrial sites.
London and the Thames: logistics and access
The Port of London covers the tidal Thames from Teddington Lock to a boundary line out in the North Sea, is governed by the Port of London Authority (a public trust since 1908), and was the UK's largest port in 2020.
London and the Thames: background
London is Europe's largest city economy and one of the world's major financial centres, so many suppliers, consultancies and head offices that approve equipment are based there.
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.
The term · hazardous area
What “hazardous area” means for a smartphone
A hazardous area is a place where flammable gas, vapour or combustible dust may be present. Standards divide these into zones: Zones 0, 1 and 2 for gas and vapour, and Zones 20, 21 and 22 for dust. Zone 1 and Zone 21 are the tier where an explosive atmosphere is likely to occur in normal operation, which is where the IS-04Z1 is designed to work. Anything carried in must be marked for the zone, gas group and temperature class of the area.
No certificate has been issued for the IS-04Z1 yet, so it must not be taken into a classified area until the certificate covering it exists and the site operator has accepted it.
In London and the Thames. London itself has no refinery. The classified areas are at Thames-side fuel terminals, namely Thames Oilport on the former Coryton site and West Thurrock in Essex, with marine jetties, road tanker loading and gas network sites. The terminals lie on the estuary in Essex, not inside Greater London, and the operators classify the zones.
The route · specification
Specifying a hazardous area 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 a hazardous area mobile phone in London 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 hazardous area 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.
Which hazardous areas is the IS-04Z1 designed for?
Zone 1 and Zone 21 (gas and dust) with gas group IIC and temperature class T4, subject to certification. It must not be used in a classified area before its certificate is issued and the site has accepted it.
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.
Ex-Proof Mobile Phone in LondonSame place, different guide
Intrinsically Safe Mobile Phone in LondonSame place, different guide
Industrial Mobile Phone Distributor in LondonSame place, different guide
ATEX and IECEx Mobile Phone in LondonSame place, different guide
Explosion-Proof Mobile Phone Distributor in LondonSame place, different guide
IECEx Mobile Phone in LondonSame place, different guide
ATEX and IECEx Mobile Phone Distributor in EdinburghElsewhere in United Kingdom
ATEX and IECEx Mobile Phone Distributor in NorwichElsewhere in United Kingdom
ATEX and IECEx Mobile Phone Distributor in WalesElsewhere in United Kingdom
ATEX and IECEx Mobile Phone Distributor in LiverpoolElsewhere 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
Share the site details and quantity. You will get the datasheet and the certification schedule back by email; pricing is indicative only until launch.
Enquiry · London and the Thames
Launching Q4 2026
Planning for London?
Send the zone and gas group of your site and we will reply with the datasheet and schedule.