Expansion
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.
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. A diesel hydrodesulphurisation unit was commissioned in 1999 to produce low-sulphur diesel. If you are specifying an explosion proof 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.
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.
| 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 | 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.
Who operates there and which kinds of classified area a handset would meet, from the SAMS site research.
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.
Crude arrives by pipeline from the Gujarat coast. Summers are generally hot and dusty, with cold foggy winters.
Paraxylene and purified terephthalic acid units were commissioned in June 2006, and a naphtha cracker complex next door makes ethylene and propylene for polymers.
The city is also known as the city of weavers and a textile centre, with wool and cotton milling, glass and electrical appliance manufacturing.
The refinery produces ultra-low sulphur diesel under BS VI norms and has four ambient air monitoring stations that predate its start-up.
Panipat is 95 kilometres north of Delhi and 169 kilometres south of Chandigarh on NH-44.
“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 Panipat, Haryana. A site with a naphtha cracker, ethylene and propylene handling and product tank farms shows the difference between phrase and protection. Fixed plant may be flameproof Ex d, while handhelds on rounds rely on intrinsic safety. Light hydrocarbon areas demand careful checking of the marking.
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.
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.
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.
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.
Related guides for Panipat India and for 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.
Name the site and the operator and we will send what is available before launch.