ExxonMobil
ExxonMobil states it owns and operates a 592,000-barrel-per-day refinery integrated with its chemical plant, with three cogeneration facilities producing around 440 MW.
Singapore Refinery · intrinsically safe
Intrinsically Safe Mobile Phone in Singapore Refinery
Singapore's crude refining is run by ExxonMobil, Singapore Refining Company and Aster, with facilities on Jurong Island and Pulau Bukom. Process units, tank farms and jetties create Zone 1 and Zone 2 areas. If you are specifying an intrinsically safe mobile phone for Singapore refineries, 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 topicintrinsically safe
DeviceMobile Phone
RouteSpecification
WhereSingapore Refinery
Short answer. The SAMS IS-04Z1 is the intrinsically safe smartphone covered here for Singapore refineries: 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. 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 mobile phone for Singapore refineries
| 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 | Singapore refineries: Refinery process units, Crude and product storage, Jetties | Classified by the site operator |
Product · Singapore Refinery
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 Singapore Refinery. 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 · Singapore refineries
Singapore refineries: 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
- ExxonMobil
- Singapore Refining Company (SRC)
- Aster Chemicals and Energy
Classified areas to expect
- Refinery process units
- Crude and product storage
- Jetties
- Utility and cogeneration areas
Local conditions · Singapore refineries
Conditions in Singapore refineries that affect handheld equipment
SRC
Singapore Petroleum Company holds a 50% interest in SRC, whose refinery can process 290,000 barrels of crude per day; Chevron holds the other 50%.
Field notes · Singapore refineries
More about Singapore refineries that matters for portable equipment
Singapore refineries: rules and approvals
Visitors surrender contraband such as matches and lighters, declare cameras, computers and laptops, wear a security pass at all times and stay with their sponsor inside the refinery.
Singapore refineries: people and language
Staff and visitors reach Jurong Island by bus from Lakeside MRT or Jurong East, with some employers running private shuttles from the checkpoint to their premises.
Singapore refineries: industry on the ground
Singapore Refining Company operates a Jurong Island refinery capable of processing 290,000 barrels of crude oil a day, supplying fuel products and chemical feedstocks to domestic and export markets.
Singapore refineries: logistics and access
The refinery's main entrance is reached via Merlimau Road along Jurong Island Highway, after a stop at the Jurong Island Checkpoint where visitors collect a visitor pass.
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 Singapore refineries. Refinery operators walk long routes through process units, utilities and storage, and turnaround crews inspect equipment in tight windows. A handheld intrinsically safe phone is designed to carry photographs, readings and checklists on those rounds. It depends on certification in progress and on each refinery's permit and inspection systems.
The route · specification
Specifying an intrinsically safe mobile phone for Singapore Refinery
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 · Singapore Refinery
Frequently asked questions
Can we buy an intrinsically safe mobile phone in Singapore Refinery 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 intrinsically safe mobile phone in Singapore Refinery 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.
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 Singapore refineries would use it?
Likely candidates are refinery process units, crude and product storage, jetties, utility and cogeneration areas. 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.
How large are the refineries on Jurong Island?
One refinery states a crude capacity of 290,000 barrels a day, and other operators share the island. The scale means many contractors, so expect formal induction, permits and equipment checks for any portable electronics.
Who should a supplier contact at a refinery?
Refineries usually route equipment queries through procurement and the process safety or HSE function, with reliability and maintenance teams as end users. Ask your sponsor for the correct contacts and the current approved-equipment procedure.
Do all Singapore refineries accept the same devices?
No. The refineries use their own approval and contractor systems, so acceptance at one does not carry over to another. The IS-04Z1 has no certificate yet. Send the datasheet to each operator's procurement and HSE teams and confirm with the site operator.
Related guides
Keep exploring
Related guides for Singapore Refinery and for Singapore.
IECEx Mobile Phone in Singapore RefinerySame place, different guide
ATEX and IECEx Mobile Phone Distributor in Singapore RefinerySame place, different guide
Ex-Proof Mobile Phone Distributor in Singapore RefinerySame place, different guide
Rugged Mobile Phone Distributor in Singapore RefinerySame place, different guide
Explosion-Proof Mobile Phone Distributor in Singapore RefinerySame place, different guide
Industrial Mobile Phone Distributor in Singapore RefinerySame place, different guide
ATEX and IECEx Mobile Phone Distributor in Pulau Bukom RefineryElsewhere in Singapore
ATEX and IECEx Mobile Phone Distributor in Keppel ShipyardElsewhere in Singapore
ATEX and IECEx Mobile Phone Distributor in Singapore ShipyardElsewhere in Singapore
ATEX and IECEx Mobile Phone Distributor in Senoko Industrial ZoneElsewhere in Singapore
Singapore market guideCertification route and regulators
All guides for SingaporeEvery route we cover
Certification statusWhat is in progress
Enquiry · Singapore refineries
Ask about the IS-04Z1 for Singapore refineries, Singapore
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 · Singapore refineries
Launching Q4 2026
Planning for Singapore Refinery?
Name the site and the operator and we will send what is available before launch.