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.
London · intrinsically safe
Intrinsically Safe Smartphone 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. Gas network and utility sites add smaller classified areas. This page explains what to look for in an intrinsically safe smartphone 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 topicintrinsically safe
DeviceSmartphone
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 · intrinsically safe
Checklist: intrinsically safe smartphone for London and the Thames
| Check | What to look for | IS-04Z1 today |
|---|---|---|
| Level of protection | ia, ib or ic matched to the zone | ib, for Zone 1 |
| Entity parameters | Uo, Io and Po within the device limits | Published with the certificate |
| Accessories | Chargers and cases certified with the device | Defined at certification |
| 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
Working in London and the Thames: operators and classified areas
The companies on site and the hazardous-area types a handset is likely to meet there.
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
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.
Field notes · London and the Thames
More about London and the Thames that matters for portable equipment
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.
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.
The term · intrinsically safe
What “intrinsically safe” means for a smartphone
Intrinsic safety limits the electrical and thermal energy in a circuit so that neither a spark nor a hot surface can ignite a gas or dust atmosphere, even when a fault occurs. The ib level, used for Zone 1, tolerates one fault. It is the usual way to make a handheld device that a worker carries continuously through a hazardous area.
The IS-04Z1 is designed on this principle for Zone 1 and Zone 21 (marking target II 2 G Ex ib IIC T4). Intrinsic safety is a design basis, not a certificate: certification is in progress and none has been issued yet.
In London and the Thames. Terminal rounds cover tank gauging, valve lineups, jetty connections and road tanker loading. A handheld designed for intrinsic safety suits staff who check readings and take photographs while standing at a tank or rack. Gas network sites add smaller routine inspections where the same handheld logic would apply.
The route · specification
Specifying an intrinsically safe smartphone 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 intrinsically safe smartphone in London today?
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.
What does an intrinsically safe smartphone in London cost?
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.
What does ‘intrinsically safe’ mean for the IS-04Z1?
The circuits are designed to limit energy so a spark or hot surface cannot ignite a gas or dust atmosphere, even with one fault (level ib, Zone 1). Certification of that design is in progress.
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
More on London, and on other places in United Kingdom.
Industrial Mobile Phone Distributor in LondonSame place, different guide
ATEX and IECEx Mobile Phone in LondonSame place, different guide
Hazardous Area Mobile Phone Distributor in LondonSame place, different guide
Explosion-Proof Mobile Phone Distributor in LondonSame place, different guide
IECEx Mobile Phone Distributor in LondonSame place, different guide
Ex-Proof Mobile Phone Distributor in LondonSame place, different guide
ATEX and IECEx Mobile Phone Distributor in LiverpoolElsewhere in United Kingdom
ATEX and IECEx Mobile Phone Distributor in CardiffElsewhere in United Kingdom
ATEX and IECEx Mobile Phone Distributor in EdinburghElsewhere in United Kingdom
ATEX and IECEx Mobile Phone Distributor in WalesElsewhere 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?
Tell us the zone, gas group and operator. We will send the datasheet and the certification schedule.