China: rules and approvals
Explosion-protected electrical products in China need CCC certification, mandatory since 1 October 2020, to the GB/T 3836 series, which is China's adoption of IEC 60079.
China · hazardous area
Hazardous Area Mobile Phone in China
The IS-04Z1 is an intrinsically safe handset for people who cross into classified areas in China every shift: oilfield and refinery operators, coal-mining safety officers, petrochemical engineers, and the HSE and telecoms teams who equip them. If you are specifying a hazardous area mobile phone for China, 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 topichazardous area
DeviceMobile Phone
RouteSpecification
WhereChina
Short answer. The SAMS IS-04Z1 is the intrinsically safe smartphone covered here for China: pre-launch, designed for Zone 1 and Zone 21 (marking target Ex ib IIC T4), with certification in progress and no certificate issued.
Status: pre-launch. IECEx, ATEX, UKEX and NEC 500 certification is in progress and no certificate has been issued; launch is planned for Q4 2026. Operator approval runs on its own timeline. Certification status. Place facts reviewed October 2026.
At a glance · hazardous area
Checklist: hazardous area mobile phone for China
| Check | What to look for | IS-04Z1 today |
|---|---|---|
| Zone | 0, 1 or 2 for gas; 20, 21 or 22 for dust | Designed for Zone 1 and Zone 21 |
| Gas group | IIA, IIB or IIC | IIC (target) |
| Area drawing | The operator's own classification drawing | Decided by the site operator |
| Where it applies | China: Shanxi, Shaanxi and Inner Mongolia, Daqing | 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 market · China
Where this applies in China
The classified areas, operators and sites below are the ones covered in the SAMS China market guide.
Operators, EPCs and contractors
- Sinopec
- China Petroleum & Chemical Corporation — refining, petrochemicals and retail nationwide
- PetroChina (CNPC)
- Upstream oil and gas production and refining
- China Energy Investment Corporation
- The world’s largest coal producer, formed from Shenhua and Guodian
- CNOOC
- Offshore oil and gas production
- Yanzhou Coal / Yankuang
- Major coal mining group in Shandong and beyond
- Daqing Oilfield
- One of China’s largest and oldest producing oilfields
Industrial areas and sites
- Shanxi
- China’s largest coal-producing province
- Shaanxi and Inner Mongolia
- Major coal mining and coal-chemical regions
- Daqing
- Heilongjiang oilfield, one of the largest in China
- Shengli oilfield
- Major producing field in Shandong
- Zhoushan / Ningbo
- Large-scale coastal refining and petrochemical hub
- Maoming
- Refining and petrochemical complex in Guangdong
Field notes · China
More about China that matters for portable equipment
China: rules and approvals
ATEX certificates and Eurasian certificates are not accepted in China, and the applicant for CCC may be a foreign company.
China: rules and approvals
CNCA designated six certification bodies and 13 testing laboratories for Ex products, and an IECEx test report may serve as test evidence but does not replace the CCC certificate.
China: background
The Daqing field in Heilongjiang, discovered in 1959 in the Songhua Jiang-Liao basin, has been the backbone of Chinese oil production for decades, and Shengli began producing in 1968.
The term · hazardous area
What “hazardous area” means for a smartphone
A hazardous area is a place where flammable gas, vapour or combustible dust may be present. Standards divide these into zones: Zones 0, 1 and 2 for gas and vapour, and Zones 20, 21 and 22 for dust. Zone 1 and Zone 21 are the tier where an explosive atmosphere is likely to occur in normal operation, which is where the IS-04Z1 is designed to work. Anything carried in must be marked for the zone, gas group and temperature class of the area.
No certificate has been issued for the IS-04Z1 yet, so it must not be taken into a classified area until the certificate covering it exists and the site operator has accepted it.
In China. China's classified areas range from northern coal belt mines in Shanxi, Shaanxi and Inner Mongolia to inland oilfields at Daqing and Shengli and the coastal petrochemical hubs at Zhoushan, Ningbo and Maoming. Operators such as Yanzhou Coal and CNOOC classify their own areas, which SAMS does not.
The route · specification
Specifying a hazardous area mobile phone for China
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 · China
Frequently asked questions
Can we buy a hazardous area mobile phone in China 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 a hazardous area mobile phone in China 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.
Which hazardous areas is the IS-04Z1 designed for?
Zone 1 and Zone 21 (gas and dust) with gas group IIC and temperature class T4, subject to certification. It must not be used in a classified area before its certificate is issued and the site has accepted it.
Which sites in China does this cover?
The market guide for China covers Shanxi, Shaanxi and Inner Mongolia, Daqing, Shengli oilfield, among others. Site-level pages are linked below.
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.
What radio and network approvals does a smartphone need in China?
In addition to CCC where applicable, radio devices need SRRC approval and phones connecting to public networks need the MIIT network access licence. The NAL is described as compulsory, valid for three years, with local testing and a local representative. Confirm the current requirements with MIIT or an accredited body.
Do Ex phones need a CCC mark in China?
Products that fall within the explosion-protected electrical category of the CCC catalogue may not be sold, imported or used in business without a CCC certificate and mark, to the GB/T 3836 series. Check with a CNCA-designated body whether a given product falls within that catalogue scope.
Does NEPSI certification mean a Chinese operator will accept the phone?
No: Sinopec, PetroChina and the major coal producers each run their own equipment-approval and procurement process, so a device can be NEPSI-certified and still unlisted. NEPSI and SRRC are being pursued and are not finished. Confirm the listing route with the operator.
Related guides
Keep exploring
Related guides for China and for China.
Ex-Proof Mobile Phone Distributor in ChinaSame place, different guide
Rugged Mobile Phone in ChinaSame place, different guide
ATEX and IECEx Mobile Phone Supplier in ChinaSame place, different guide
IECEx Mobile Phone in ChinaSame place, different guide
Intrinsically Safe Mobile Phone Distributor in ChinaSame place, different guide
Industrial Mobile Phone in ChinaSame place, different guide
China market guideCertification route and regulators
All guides for ChinaEvery route we cover
Certification statusWhat is in progress
Enquiry · China
Ask about the IS-04Z1 for China
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 · China
Launching Q4 2026
Planning for China?
Send the zone and gas group of your site and we will reply with the datasheet and schedule.