Complex
Alongside the refinery, Indian Oil runs a naphtha cracker and PX-PTA units producing ethylene, propylene, paraxylene and purified terephthalic acid.
Panipat in Haryana hosts Indian Oil's refinery and petrochemical complex at Baholi, which began operating in 1998 and now processes 15 million tonnes a year. Process units, a naphtha cracker and tank farms create Zone 1 areas. If you are specifying an intrinsically safe mobile phone for Panipat, Haryana, this page covers the markings, the approvals and the current certification status of the IS-04Z1.
Pre-launch · certification in progress · Launching Q4 2026
Short answer. The SAMS IS-04Z1 is the intrinsically safe smartphone covered here for Panipat, Haryana: 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. A buyer's engineering review is separate from the certificate. Certification status. Place facts reviewed October 2026.
| 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 | Panipat, Haryana: Refinery process units, Naphtha cracker and petrochemical units, Product tank farms | Classified by the site operator |

An intrinsically safe Android smartphone designed for Zone 1 and Zone 21 hazardous areas in Panipat India. It is pre-launch: IECEx, ATEX and NEC 500 certification is in progress ahead of the Q4 2026 launch.
A short profile of the site and the kinds of classified area that matter for portable equipment.
Alongside the refinery, Indian Oil runs a naphtha cracker and PX-PTA units producing ethylene, propylene, paraxylene and purified terephthalic acid.
Indian Oil's board approved expansion from 15 to 25 million tonnes a year; recent reports put full commissioning around December 2026, so project contractors are active on site.
It receives crude through the Salaya-Mathura pipeline and handles both domestic and imported crudes.
Major units include a hydrocracker, resid fluidised catalytic cracker, visbreaker, delayed coker, bitumen blowing unit, hydrogen generation unit and sulphur block.
Panipat Refinery at Baholi, Indian Oil's seventh, was set up in 1998 at 6 million tonnes a year and has since been expanded to 15 million tonnes a year.
Paraxylene and purified terephthalic acid units were commissioned in June 2006, and a naphtha cracker complex next door makes ethylene and propylene for polymers.
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 Panipat, Haryana. With expansion under way, more units are being built, tested and commissioned. Inspectors and commissioning teams make frequent short visits, and an intrinsically safe handheld supports logging at the asset. The IS-04Z1 is designed for such rounds, though certification is still in progress.
A short checklist for anyone writing or reviewing the specification, with the IS-04Z1 status against each point.
No. Nothing can be bought or taken into a classified area today: certification is in progress and launch is planned for Q4 2026. What is available now is the datasheet, the written certification schedule and evaluation units for safe-area use.
There is no list price yet. SAMS gives indicative pre-launch pricing in writing, against a stated quantity and site, and does not commit to a lead time before certification completes.
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.
Likely candidates are refinery process units, naphtha cracker and petrochemical units, product tank farms, loading gantries. Which areas are classified, and to what zone, is set by the site operator's own area classification drawings.
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.
The refinery has process units, hydrogen and cracker areas, tank farms and loading facilities, and the naphtha cracker complex adds ethylene and propylene handling. The operator defines classified areas, so request the drawings before visiting.
Yes, the refinery has paraxylene and PTA units and a naphtha cracker complex alongside it. The units may have different operators and rules, so ask each site.
Cold can reduce battery capacity and fog adds moisture, so sealing and warm storage between uses help. An IP68 housing handles moisture ingress. Ask the operator about its rules for portable equipment outdoors in winter and where devices may be kept warm.
More on Panipat India, and on other places in 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.
Send the zone and gas group of your site and we will reply with the datasheet and schedule.