IOCL: climate and equipment wear
Retail outlets range from city forecourts to Kaza in Himachal Pradesh, at 3,740 m the world's highest outlet under the company, so equipment may face mountain cold as well as coastal heat.
IOCL · intrinsically safe
Intrinsically Safe Mobile Phone for IOCL
IndianOil is a government-owned Indian oil and gas company working across refining, pipelines and petroleum marketing. It operates 11 of India's 23 refineries and a cross-country pipeline network of over 13,000 km. This page explains what to look for in an intrinsically safe mobile phone for IOCL, 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
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 · intrinsically safe
Checklist: intrinsically safe mobile phone for IOCL
| 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 | 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): 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
- Panipat refinery
- Mathura refinery
- Koyali refinery (Gujarat)
- Haldia refinery
Classified areas
- Refinery process units
- Product pipelines and terminals
- Fuel storage and loading
Supplier approval · IOCL
How suppliers reach 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: rules and approvals
Indian Oil is under the administrative control of the Ministry of Petroleum and Natural Gas and has about 51% government ownership, so procurement follows public sector tendering norms.
IOCL: industry on the ground
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.
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.
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 IOCL. Rounds across refinery process units, product pipeline terminals and loading gantries involve reading gauges, photographing equipment and filing permits, and shutdowns add large crews. A handheld designed as intrinsically safe could carry those tasks on one device. The IS-04Z1 is designed for this use, though certification is still in progress.
The route · specification
Specifying an intrinsically safe mobile phone 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 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 IOCL 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 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
Other guides for IOCL, other places in India, and the pages behind them.
IECEx Mobile Phone for IOCLSame place, different guide
ATEX and IECEx Mobile Phone Supplier for IOCLSame place, different guide
Explosion-Proof Mobile Phone Supplier for IOCLSame place, different guide
Intrinsically Safe Mobile Phone Supplier 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.