Sinopec: background
Sinopec Limited was established in February 2000 and listed in Hong Kong, New York and London in October 2000, raising 3.5 billion dollars, and a Shanghai listing followed in 2001.
Sinopec · intrinsically safe
Intrinsically Safe Smartphone for Sinopec
Sinopec is a Beijing-headquartered state-controlled energy and chemicals group and the world's largest oil refining conglomerate. It operates refineries, petrochemical complexes and upstream units such as Shengli Oilfield in Shandong, and the Zhenhai base in Ningbo, upgraded to 40 million tonnes a year. If you are specifying an intrinsically safe smartphone for Sinopec, 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
DeviceSmartphone
RouteSpecification
WhereSinopec
Short answer. The SAMS IS-04Z1 is the intrinsically safe smartphone covered here for Sinopec: 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 Sinopec
| 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 | Sinopec: Refinery process units, Petrochemical plants, Oil and gas production facilities | Classified by the site operator |
Product · China
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 China. 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 · Sinopec
China Petroleum & Chemical Corporation (Sinopec) and the IS-04Z1
Where it operates and the kinds of classified area a handset would meet there.
Sites and areas
- Zhenhai refinery and petrochemical base (Ningbo)
- Maoming refining and chemical company
- Shengli Oilfield (Shandong)
Classified areas
- Refinery process units
- Petrochemical plants
- Oil and gas production facilities
Supplier approval · Sinopec
Supplier registration at Sinopec
Sinopec buys largely through its own EPEC.com procurement portal, and only suppliers certified by Sinopec can sell on it; confirm current certification steps with Sinopec. 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 · Sinopec
More about Sinopec that matters for portable equipment
Sinopec: geography and layout
Sinopec Group is based in Chaoyang District, Beijing, and is administered by SASAC on behalf of the State Council, with listed subsidiary Sinopec Limited traded in Hong Kong and Shanghai.
Sinopec: who works there
Sinopec Group is a Beijing-based state-owned enterprise, administered by SASAC for the State Council.
Sinopec: industry on the ground
The Jiujiang Petrochemical Complex was first built in 1975, has been upgraded repeatedly and processes about 8 million tonnes of crude oil a year, so old and modern plant sit together on one site.
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 Sinopec. Large refinery and petrochemical sites such as Zhenhai in Ningbo involve long inspection routes and turnaround campaigns with photographing, tag reading and permits. A handheld designed as intrinsically safe could carry that on one device. The IS-04Z1 is designed for this use, though certification is still in progress.
The route · specification
Specifying an intrinsically safe smartphone for Sinopec
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 · Sinopec
Frequently asked questions
Can Sinopec buy the IS-04Z1 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 an intrinsically safe smartphone for Sinopec 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 Sinopec approve suppliers?
Sinopec buys largely through its own EPEC.com procurement portal, and only suppliers certified by Sinopec can sell on it; confirm current certification steps with Sinopec.
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.
Which Sinopec sites typically contain Zone 1 areas?
Typical Zone 1 and Zone 2 areas are found at refineries, ethylene and petrochemical plants, tank farms, loading terminals and fuel stations. Classification is site-specific, so request the area classification drawings from the plant's safety department before choosing handheld devices.
What certification marks do Chinese refineries expect on portable equipment?
Chinese plants commonly expect equipment for explosive atmospheres to hold the national explosion-protection certificate and marking, sometimes alongside international certificates. Confirm with the specific plant which approvals are accepted, and whether an inspection or registration step applies.
What differs between Zhenhai and the Shengli Oilfield for a handset?
Zhenhai is a coastal refinery and petrochemical base with humid salty air, while Shengli is an upstream oilfield in Shandong with colder winters. Their area classifications also differ. Compare the device marking with each site's documents. The IS-04Z1 is not yet certified. Confirm with Sinopec's HSE team.
Related guides
Keep exploring
Other guides for Sinopec, other places in China, and the pages behind them.
IECEx Mobile Phone for SinopecSame place, different guide
Explosion-Proof Mobile Phone Supplier for SinopecSame place, different guide
ATEX and IECEx Mobile Phone for SinopecSame place, different guide
Intrinsically Safe Mobile Phone Supplier for SinopecSame place, different guide
ATEX and IECEx Mobile Phone Supplier for CNPCElsewhere in China
ATEX and IECEx Mobile Phone Supplier for CNOOCElsewhere in China
China market guideCertification route and regulators
All guides for ChinaEvery route we cover
Certification statusWhat is in progress
Enquiry · Sinopec
Ask about the IS-04Z1 for Sinopec, China
Send the site, zone and gas group and roughly how many handsets. We reply by email with the datasheet and the certification schedule.
Enquiry · Sinopec
Launching Q4 2026
Planning for Sinopec?
Name the site and the operator and we will send what is available before launch.