ONGC: geography and layout
It explores in 26 sedimentary basins of India, and its domestic operations are structured around 11 production assets, 7 exploratory basins and two plants at Hazira and Uran.
ONGC · intrinsically safe
Intrinsically Safe Mobile Phone for ONGC
ONGC is India's largest government-owned oil and gas explorer and producer, founded in 1956 and headquartered in New Delhi. It operates onshore basins such as Assam, Cambay and the East Coast, the Mumbai High offshore field, and gas processing plants at Hazira and Uran. This page explains what to look for in an intrinsically safe mobile phone for ONGC, and where the IS-04Z1 stands against that list today.
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
WhereONGC
Short answer. The SAMS IS-04Z1 is the intrinsically safe smartphone covered here for ONGC: 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 ONGC
| 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 | ONGC: Offshore production platforms, Onshore oil and gas production facilities, Gas processing plants | Classified by the site operator |
Product · India
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 India. 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 · ONGC
Oil and Natural Gas Corporation Limited (ONGC) and the IS-04Z1
Where it operates and the kinds of classified area a handset would meet there.
Sites and areas
- Cambay basin
- Hazira gas processing plant
- Uran gas processing plant
- Mumbai High offshore field
Classified areas
- Offshore production platforms
- Onshore oil and gas production facilities
- Gas processing plants
Supplier approval · ONGC
How suppliers reach ONGC
ONGC buyers register through its e-tender portal (user ID obtained via the new-bidder access authorisation link), and bidders need a digital signature certificate; confirm current rules with ONGC. 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 · ONGC
More about ONGC that matters for portable equipment
ONGC: projects and investment
A 2015 offshore contract for the Bassein development project and a 2016 plan to invest in Tripura gas wells and surface facilities show continuing offshore and north-eastern activity.
ONGC: industry on the ground
ONGC accounts for around 70% of India's domestic crude oil and around 84% of its natural gas, so a large share of the country's upstream hazardous-area work sits with this one operator.
ONGC: geography and layout
Onshore, ONGC found oilfields in Sivasagar district of Assam in 1963 and established the Cambay basin in Gujarat as a new oil province, giving it long-standing operations in the north-east and the west.
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 ONGC. Operators on a platform or at a processing plant walk rounds with gauges, logs and defect lists. A handheld intrinsically safe phone lets them photograph equipment, scan tags and report faults inside classified areas without carrying a separate camera or paper forms. It would suit inspection rounds on Mumbai High production decks and in the Hazira and Uran plant areas.
The route · specification
Specifying an intrinsically safe mobile phone for ONGC
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 · ONGC
Frequently asked questions
Can ONGC 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 mobile phone for ONGC 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.
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 ONGC approve suppliers?
ONGC buyers register through its e-tender portal (user ID obtained via the new-bidder access authorisation link), and bidders need a digital signature certificate; confirm current rules with ONGC.
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 monsoon and heat affect devices on Indian sites?
Western offshore and Gujarat sites are hot and humid, with a heavy monsoon season, while Assam is very humid and rainy. For handheld devices that means good sealing, corrosion resistance and thermal limits; ask the asset about its environmental requirements.
Where would intrinsically safe phones be used at ONGC?
Typical uses are offshore platforms off Mumbai, onshore well sites and group gathering stations in Assam and Gujarat, and the gas processing plants at Hazira and Uran. Classification is set per installation, so ask each asset's HSE team for area drawings and its rules on portable electronics.
Do I need to register with ONGC before offering a device?
ONGC buyers are reported to register through its e-tender portal, and bidders need a digital signature certificate. That process is separate from product certification. The IS-04Z1 has no certificate yet, so any approach should begin with the datasheet and a safe-area evaluation. Check current rules with ONGC procurement before bidding.
Related guides
Keep exploring
Other guides for ONGC, other places in India, and the pages behind them.
IECEx Mobile Phone Supplier for ONGCSame place, different guide
ATEX and IECEx Mobile Phone Supplier for ONGCSame place, different guide
Explosion-Proof Mobile Phone for ONGCSame place, different guide
Intrinsically Safe Mobile Phone Supplier for ONGCSame place, different guide
ATEX and IECEx Mobile Phone Supplier for IOCLElsewhere in India
India market guideCertification route and regulators
All guides for IndiaEvery route we cover
Certification statusWhat is in progress
Enquiry · ONGC
Ask about the IS-04Z1 for ONGC, India
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 · ONGC
Launching Q4 2026
Planning for ONGC?
Name the site and the operator and we will send what is available before launch.