IOCL: geography and layout
Indian Oil Corporation is registered in Mumbai and headquartered in New Delhi, while its refineries, pipelines and terminals are spread across the country, so site contacts are normally local rather than at head office.
IOCL · explosion proof
Explosion-Proof Smartphone for IOCL
IndianOil is a government-owned Indian oil and gas company working across refining, pipelines and petroleum marketing. The Indian Oil Group owns and operates 11 of India's 23 refineries, with a combined refining capacity of 80.7 million tonnes a year, so refinery shutdown and turnaround work is frequent and large. If you are specifying an explosion proof smartphone for IOCL, 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
WhereIOCL
Short answer. The SAMS IS-04Z1 is the intrinsically safe smartphone covered here for IOCL: 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. Operator approval runs on its own timeline. Certification status. Place facts reviewed October 2026.
At a glance · explosion proof
Checklist: explosion proof smartphone for IOCL
| 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 | IOCL: Refinery process units, Product pipelines and terminals, Fuel storage and loading | 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 · IOCL
Indian Oil Corporation Limited (IndianOil) and the IS-04Z1
Where it operates and the kinds of classified area a handset would meet there.
Sites and areas
- Koyali refinery (Gujarat)
- Haldia refinery
- Paradip refinery
- Barauni refinery
Classified areas
- Refinery process units
- Product pipelines and terminals
- Fuel storage and loading
Supplier approval · IOCL
Supplier registration at IOCL
IndianOil runs an online vendor registration and empanelment portal, by goods, services or works category, and tenders are submitted electronically with a Class III digital signature certificate; confirm current rules on the IndianOil website. 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 · IOCL
More about IOCL that matters for portable equipment
IOCL: logistics and access
Aviation fuel is supplied at major airports, and the company has subsidiaries such as Lanka IOC in Sri Lanka, so airport fuel farms and hydrant systems are also hazardous-area workplaces.
IOCL: who works there
Its interests cover refining, pipelines, marketing, exploration and production, natural gas and petrochemicals, and it is organised in seven major business divisions, so the buyer depends on which division owns the site.
IOCL: people and language
As of 31 March 2024 the company had 30,321 regular employees, of whom 18,570 were executives, and attrition was reported at around 1.5%, indicating a stable, long-serving workforce.
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 IOCL. In IndianOil refineries and terminals, 'explosion-proof' is everyday shorthand for several concepts. Flameproof Ex d protects fixed motors and switchgear, while intrinsic safety limits the energy of a portable device. A phone carried on refinery or pipeline terminal rounds is a handheld, so the IS-04Z1 is designed around intrinsic safety.
The route · specification
Specifying an explosion proof smartphone for IOCL
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 · IOCL
Frequently asked questions
Can IOCL 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 IOCL 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.
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 IOCL approve suppliers?
IndianOil runs an online vendor registration and empanelment portal, by goods, services or works category, and tenders are submitted electronically with a Class III digital signature certificate; confirm current rules on the IndianOil website.
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 does supplier registration work at Indian Oil?
As a public sector company, Indian Oil buys through formal tendering and vendor registration, often via its e-procurement portal, and divisions may set their own technical requirements. Confirm the current registration process and required certificates with the relevant division's procurement office before bidding.
What standards apply to Ex equipment in India?
India applies Indian standards based on IEC explosive-atmosphere standards, and oil and gas sites are overseen by the petroleum and explosives safety authorities. Certification is normally through recognised Indian test bodies, so confirm which certificate Indian Oil's site will accept.
Do monsoon and heat affect a handset at Haldia or Panipat?
Yes. Panipat sees dust and high summer heat, while Haldia and Paradip face humidity and monsoon rain. Check the device's operating temperature range and battery plan. IP68 helps with water and dust but is not explosion protection. The IS-04Z1 is in certification. Confirm with IndianOil's HSE team.
Related guides
Keep exploring
Related guides for IOCL and for India.
ATEX and IECEx Mobile Phone Supplier for IOCLSame place, different guide
IECEx Mobile Phone Supplier for IOCLSame place, different guide
Intrinsically Safe Mobile Phone Supplier for IOCLSame place, different guide
Explosion-Proof Mobile Phone for IOCLSame place, different guide
ATEX and IECEx Mobile Phone Supplier for ONGCElsewhere in India
India market guideCertification route and regulators
All guides for IndiaEvery route we cover
Certification statusWhat is in progress
Enquiry · IOCL
Ask about the IS-04Z1 for IOCL, 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 · IOCL
Launching Q4 2026
Planning for IOCL?
Tell us the zone, gas group and operator. We will send the datasheet and the certification schedule.