Sinopec: who works there
Sinopec Group is a Beijing-based state-owned enterprise, administered by SASAC for the State Council.
Sinopec · explosion proof
Explosion-Proof Smartphone for Sinopec
Sinopec is a Beijing-headquartered state-controlled energy and chemicals group and the world's largest oil refining conglomerate. Sinopec's filling stations are common along China's roads and rivers, so forecourt and inland waterway fuelling points are part of its hazardous-area footprint alongside refineries and chemical parks. If you are specifying an explosion proof 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 topicexplosion proof
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.
Where things stand: the IS-04Z1 has not launched, and none of its four certification routes has produced a certificate yet. A buyer's engineering review is separate from the certificate. Certification status. Place facts reviewed October 2026.
At a glance · explosion proof
Checklist: explosion proof smartphone for Sinopec
| Check | What to look for | IS-04Z1 today |
|---|---|---|
| Protection concept | Flameproof (Ex d) or intrinsic safety (Ex i) | Intrinsic safety, level ib |
| Zone suitability | Zone 1 gas and Zone 21 dust | Design target for Zone 1 and 21 |
| Certificate | Number, issuing body and schedule of conditions | In progress; not issued |
| 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): 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
- 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
Becoming an approved supplier to 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: 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.
Sinopec: projects and investment
A joint-venture ethylene plant in Wuhan was completed at the end of 2012 with a South Korean partner, designed to provide about 800,000 tonnes a year of ethylene.
Sinopec: industry on the ground
The Fujian refinery was revamped under a 2007 agreement to triple its capacity to 240,000 barrels a day by 2009, showing how refinery expansion has added new process units to older sites.
The term · explosion proof
What “explosion proof” means for a smartphone
“Explosion proof” is the phrase most buyers use for equipment that may be taken into a classified hazardous area. Strictly, it covers several protection concepts: a flameproof enclosure (Ex d) contains an internal explosion, while intrinsic safety (Ex i) limits electrical energy so that an ignition cannot start. Phones are normally intrinsically safe, because a flameproof handset would be too heavy to carry all shift.
The IS-04Z1 uses intrinsic safety, with a marking target of Ex ib IIC T4, and is designed for Zone 1 and Zone 21. It is pre-launch, certification is in progress and no certificate has been issued.
In Sinopec. At Zhenhai and Maoming, 'explosion-proof' is a casual phrase covering several concepts. Flameproof Ex d protects fixed motors and enclosures in large process units, while intrinsic safety limits the energy of a portable device. A phone carried through a refinery is a handheld, so the IS-04Z1 is designed around intrinsic safety.
The route · specification
Specifying an explosion proof 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?
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 explosion proof smartphone for Sinopec 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.
Is the IS-04Z1 explosion proof or intrinsically safe?
It is intrinsically safe (marking target Ex ib IIC T4), which is the usual way to make a phone for hazardous areas. It is not a flameproof (Ex d) design, and certification is still 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.
Intrinsically Safe Mobile Phone for SinopecSame place, different guide
IECEx Mobile Phone Supplier for SinopecSame place, different guide
ATEX and IECEx Mobile Phone for SinopecSame place, different guide
Explosion-Proof Mobile Phone Supplier for SinopecSame place, different guide
ATEX and IECEx Mobile Phone Supplier for CNOOCElsewhere in China
ATEX and IECEx Mobile Phone Supplier for CNPCElsewhere 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?
Tell us the zone, gas group and operator. We will send the datasheet and the certification schedule.