Sasol: who works there
Sasol Mining operates six coal mines that supply the Secunda synfuels and Sasolburg complexes, so underground coal-mine conditions sit next to chemical plant conditions inside one company.
Sasol · intrinsically safe
Intrinsically Safe Mobile Phone for Sasol
Sasol is a South African chemicals and energy company producing fuel components, chemicals and co-products such as ammonia, methanol and sulphur. Its main South African complexes are at Secunda and Sasolburg, and it also has gas operations in Mozambique. If you are specifying an intrinsically safe mobile phone for Sasol, 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
WhereSasol
Short answer. The SAMS IS-04Z1 is the intrinsically safe smartphone covered here for Sasol: 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. A buyer's engineering review is separate from the certificate. Certification status. Place facts reviewed October 2026.
At a glance · intrinsically safe
Checklist: intrinsically safe mobile phone for Sasol
| 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 | Sasol: Synthetic fuels and chemical plants, Refinery process units, Gas processing | Classified by the site operator |
Product · South Africa
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 South Africa. 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 organisation · Sasol
Sasol Limited: operations and where an Ex phone fits
A short profile of its operations and the kinds of classified area that matter for portable equipment.
Sites and areas
- Secunda
- Sasolburg
- Natref refinery (Sasolburg)
- Mozambique gas operations
Classified areas
- Synthetic fuels and chemical plants
- Refinery process units
- Gas processing
- Coal mining operations
Supplier approval · Sasol
Supplier registration at Sasol
Sasol runs supplier applications through the Supplier Information Management (SIM) module on Ariba for suppliers working with it in South Africa and Mozambique; confirm current requirements with Sasol Supplier Management. The Ex certificate and an organisation's own vendor or engineering approval are two separate timelines; SAMS is working towards both and holds neither today.
Field notes · Sasol
More about Sasol that matters for portable equipment
Sasol: people and language
Sasol employs over 27,000 people and has operations in 33 countries, and it was a founding member of the Fuels Industry Association of South Africa when that body launched in 1994.
Sasol: industry on the ground
Sasol mines more than 40 million tonnes of saleable coal a year, mostly as gasification feedstock for Secunda, and its Secunda collieries are described as the world's largest underground coal operation.
Sasol: who works there
The group is organised into two upstream business units, three regional operating hubs and several market-facing strategic business units, so site procurement usually follows the relevant hub or unit.
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 Sasol. Rounds across synthetic fuels, chemical plants, gas processing and the Natref refinery involve extensive walking and many instrument checks. A handheld designed for intrinsic safety could capture readings, photos and calls in classified spots if its certificate allows. Permit rules are for Sasol to set, including at the Mozambique gas operations.
The route · specification
Specifying an intrinsically safe mobile phone for Sasol
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 · Sasol
Frequently asked questions
Can Sasol buy the IS-04Z1 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 for Sasol 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 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.
How does Sasol approve suppliers?
Sasol runs supplier applications through the Supplier Information Management (SIM) module on Ariba for suppliers working with it in South Africa and Mozambique; confirm current requirements with Sasol Supplier Management.
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.
Is Sasol a good target for a new supplier of Ex-rated devices?
Sasol is a large multi-site buyer, but supplier approval is run by the company and its units. Typically a new supplier needs to register, pass technical and HSE review and often start with a pilot. Confirm the current route with Sasol's procurement and the relevant site engineering group.
Which Sasol areas are most likely to need intrinsically safe handhelds?
Typical candidates are gas and liquid process units, tank farms and loading areas at Secunda and Sasolburg, plus underground coal mines where methane and coal dust create their own classification rules. Zoning is decided per installation, so ask each site's HSE team for classification drawings.
How do suppliers apply to work with Sasol?
The sheet says Sasol runs supplier applications through the Supplier Information Management (SIM) module on Ariba, for suppliers working with it in South Africa and Mozambique. Confirm current requirements with Sasol Supplier Management. The IS-04Z1 is pre-launch and has no certificate.
Related guides
Keep exploring
Related guides for Sasol and for South Africa.
IECEx Mobile Phone for SasolSame place, different guide
Explosion-Proof Mobile Phone Supplier for SasolSame place, different guide
ATEX and IECEx Mobile Phone for SasolSame place, different guide
Intrinsically Safe Mobile Phone Supplier for SasolSame place, different guide
ATEX and IECEx Mobile Phone Supplier for PetroSAElsewhere in South Africa
South Africa market guideCertification route and regulators
All guides for South AfricaEvery route we cover
Certification statusWhat is in progress
Enquiry · Sasol
Ask about the IS-04Z1 for Sasol, South Africa
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 · Sasol
Launching Q4 2026
Planning for Sasol?
Send the zone and gas group of your site and we will reply with the datasheet and schedule.