CNPC: industry on the ground
In March 2014 the chairman announced that six business units would be opened to private investors, which means some service and equipment purchasing may sit with newer mixed-ownership entities.
CNPC · explosion proof
Explosion-Proof Smartphone for CNPC
CNPC is a Beijing-headquartered state-owned integrated energy group and parent of PetroChina, covering crude and gas production, refining and petrochemicals in China and overseas. CNPC reports around 30 international exploration and production projects, with operations in countries such as Azerbaijan, Canada, Indonesia, Oman, Peru and Thailand, so some staff work under foreign site rules. If you are specifying an explosion proof smartphone for CNPC, 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
WhereCNPC
Short answer. The SAMS IS-04Z1 is the intrinsically safe smartphone covered here for CNPC: 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 · explosion proof
Checklist: explosion proof smartphone for CNPC
| 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 | CNPC: Oil and gas production facilities, Gas processing, Refinery process units | 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 · CNPC
China National Petroleum Corporation (CNPC) and the IS-04Z1
Where it operates and the kinds of classified area a handset would meet there.
Sites and areas
- Changqing oilfield (Ordos Basin)
Classified areas
- Oil and gas production facilities
- Gas processing
- Refinery process units
- Petrochemical plants
Supplier approval · CNPC
How suppliers reach CNPC
Supplier registration and equipment approval are run by the organisation itself; confirm current requirements with its procurement and HSE teams. 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 · CNPC
More about CNPC that matters for portable equipment
CNPC: who works there
Its subsidiary Great Wall Drilling Company provides drilling services, so rig crews and service contractors are an important group of hazardous-area users within the CNPC family.
CNPC: infrastructure
In 2018 the company announced gas storage facilities with a total capacity of 55.6 billion cubic metres in northern Henan province, to ease winter supply bottlenecks, adding underground storage and compression sites.
CNPC: background
CNPC originated as a government department after 1949, when a Fuel Industry Ministry was formed, and the group was restructured in 1998 along upstream and downstream lines.
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 CNPC. At oil and gas production facilities and refineries, 'explosion-proof' is everyday shorthand for different concepts. Flameproof Ex d protects fixed motors and enclosures, while intrinsic safety limits the energy of a portable device. A phone used on field or plant rounds is a handheld, so the IS-04Z1 is designed around intrinsic safety.
The route · specification
Specifying an explosion proof smartphone for CNPC
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 · CNPC
Frequently asked questions
Can CNPC buy the IS-04Z1 today?
Not yet. The IS-04Z1 is pre-launch and its certification is still in progress ahead of a Q4 2026 launch. No unit goes into a classified area before the certificate covering it exists. The datasheet, the certification schedule and safe-area evaluation units are available now.
What does an explosion proof smartphone for CNPC 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 CNPC approve suppliers?
Supplier registration and equipment approval are run by the organisation itself; confirm current requirements with its procurement and HSE teams.
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 do northern Chinese oilfields affect device choice?
Fields in northern and north-western China can see very cold winters and dusty, dry summers, so battery performance in cold, dust ingress protection and screen visibility in glare matter. Ask the oilfield for its operating temperature limits and any site restrictions on portable electronics.
What explosion-protection certificate do Chinese sites normally require?
China has its own explosion-protection certification scheme and marking, and operators usually expect equipment to carry the Chinese certificate in addition to any international ones. Confirm with the site and its certification body which approvals they accept before offering handheld devices.
Is a handset suited to wide inland fields like Changqing?
It can be, if the marking matches the area classification, battery capacity covers long shifts and the fleet can be managed centrally. Dust and winter cold need checking. IP68 is not explosion protection. The IS-04Z1 is not yet certified, so confirm with the site operator.
Related guides
Keep exploring
Related guides for CNPC and for China.
Intrinsically Safe Mobile Phone for CNPCSame place, different guide
IECEx Mobile Phone for CNPCSame place, different guide
ATEX and IECEx Mobile Phone for CNPCSame place, different guide
Explosion-Proof Mobile Phone for CNPCSame place, different guide
ATEX and IECEx Mobile Phone Supplier for SinopecElsewhere 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 · CNPC
Ask about the IS-04Z1 for CNPC, 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 · CNPC
Launching Q4 2026
Planning for CNPC?
Name the site and the operator and we will send what is available before launch.