Aster
Aster describes the Pulau Bukom refinery as operating at 237,000 barrels per day.
Singapore Refinery · Ex-proof
Ex-Proof Mobile Phone in Singapore Refinery
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. Process units, tank farms and jetties create Zone 1 and Zone 2 areas. This page explains what to look for in an Ex-proof mobile phone for Singapore refineries, 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 topicEx-proof
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.
Current position: certification in progress, nothing issued, launch targeted for Q4 2026. An operator's own vendor approval is a separate step. Certification status. Place facts reviewed October 2026.
At a glance · Ex-proof
Checklist: Ex-proof mobile phone for Singapore refineries
| Check | What to look for | IS-04Z1 today |
|---|---|---|
| Ex marking | Group, category, protection concept, gas group, temperature class | II 2 G Ex ib IIC T4 (target) |
| Gas group | IIA, IIB or IIC matched to the area drawing | IIC (target) |
| Temperature class | T-class below the ignition temperature of the gas | T4, 135 °C (target) |
| 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
Working in Singapore refineries: 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
- 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
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.
Field notes · Singapore refineries
More about Singapore refineries that matters for portable equipment
Singapore refineries: who works there
The organisation includes dedicated functions for process safety, reliability and maintenance, and procurement and warehouse, which are the usual contacts for contractors and equipment suppliers.
Singapore refineries: rules and approvals
The refinery's published rules state that mobile phones and other electrical or electronic equipment must not be used in the process plant area or other classified hazardous areas.
Singapore refineries: infrastructure
Jurong Rock Caverns store crude oil, condensate, naphtha and gasoil underground nearby, supporting feedstock flexibility for refiners on Jurong Island.
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.
The term · Ex-proof
What “Ex-proof” means for a smartphone
“Ex-proof” is shorthand for equipment carrying an explosion-protection marking (the Ex mark) that matches the area it enters. The marking states the protection concept, gas or dust group and temperature class, and it must be backed by a certificate issued by a recognised body, so a phone described as Ex-proof should come with a certificate number you can check.
The IS-04Z1 is designed to carry the marking II 2 G Ex ib IIC T4. That is a target: certification is in progress, no certificate has been issued, and SAMS will publish the certificate numbers when they exist.
In Singapore refineries. Process units, tank farms and jetties are described as Zone 1 and Zone 2 areas here. Hydrocarbon fuels usually fall in gas groups IIA or IIB, though hydrogen units can need IIC. The IS-04Z1 target marking is II 2 G Ex ib IIC T4, not yet issued, so the operator's drawings decide fit.
The route · specification
Specifying an Ex-proof 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 Ex-proof 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 Ex-proof mobile phone in Singapore Refinery cost?
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.
What Ex marking will the IS-04Z1 carry?
The marking target is II 2 G Ex ib IIC T4. It becomes a marking only when the certificate is issued; until then it is a design target.
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.
Hazardous Area Mobile Phone in Singapore RefinerySame place, different guide
Industrial Mobile Phone in Singapore RefinerySame place, different guide
Intrinsically Safe Mobile Phone in Singapore RefinerySame place, different guide
IECEx Mobile Phone in Singapore RefinerySame place, different guide
ATEX and IECEx Mobile Phone Distributor in Singapore RefinerySame place, different guide
Explosion-Proof Mobile Phone Distributor in Singapore RefinerySame place, different guide
ATEX and IECEx Mobile Phone Distributor in Tuas Industrial ZoneElsewhere in Singapore
ATEX and IECEx Mobile Phone Distributor in Jurong IslandElsewhere in Singapore
ATEX and IECEx Mobile Phone Distributor in Keppel ShipyardElsewhere in Singapore
ATEX and IECEx Mobile Phone Distributor in Singapore MarineElsewhere 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
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 · Singapore refineries
Launching Q4 2026
Planning for Singapore Refinery?
Name the site and the operator and we will send what is available before launch.