Mixed industry
Wikipedia lists Reliance, ONGC, Shell, NTPC, L&T and KRIBHCO among the major Hazira operators, with L&T's shipyard and heavy engineering complex alongside.
Hazira is an industrial and port suburb of Surat in Gujarat, on the Tapti River about 8 km from the Arabian Sea. The Hazira LNG terminal in Surat district was designed for 5 million tonnes a year of regasification, expandable to 10 million tonnes depending on demand. If you are specifying a hazardous area smartphone for Hazira, Surat, 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 Hazira, Surat: 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 |
|---|---|---|
| Zone | 0, 1 or 2 for gas; 20, 21 or 22 for dust | Designed for Zone 1 and Zone 21 |
| Gas group | IIA, IIB or IIC | IIC (target) |
| Area drawing | The operator's own classification drawing | Decided by the site operator |
| Where it applies | Hazira, Surat: LNG regasification, Gas processing, Petrochemical plants | Classified by the site operator |

An intrinsically safe Android smartphone designed for Zone 1 and Zone 21 hazardous areas in Hazira India. It is pre-launch: IECEx, ATEX and NEC 500 certification is in progress ahead of the Q4 2026 launch.
The companies on site and the hazardous-area types a handset is likely to meet there.
Wikipedia lists Reliance, ONGC, Shell, NTPC, L&T and KRIBHCO among the major Hazira operators, with L&T's shipyard and heavy engineering complex alongside.
The area is generally hot and humid with monsoon rain, so sealed devices suit outdoor work.
The monsoon starts in late June and brings about 1,200 millimetres of rain by the end of September, with maxima around 32 degrees during those months.
Surat has a tropical savanna climate moderated by the sea, with April and May the hottest months at an average maximum of about 37 degrees Celsius.
Industrial names at Hazira include Essar, Kribhco, Shell, Larsen and Toubro, NTPC, ONGC, GAIL, Gujarat State Petroleum Corporation, UltraTech Cement and Reliance's Hazira Manufacturing Division.
The L and T shipyard at Hazira began building small ships and naval craft in 2010 and was renamed the A M Naik Heavy Engineering Complex in 2021.
A hazardous area is a place where flammable gas, vapour or combustible dust may be present. Standards divide these into zones: Zones 0, 1 and 2 for gas and vapour, and Zones 20, 21 and 22 for dust. Zone 1 and Zone 21 are the tier where an explosive atmosphere is likely to occur in normal operation, which is where the IS-04Z1 is designed to work. Anything carried in must be marked for the zone, gas group and temperature class of the area.
No certificate has been issued for the IS-04Z1 yet, so it must not be taken into a classified area until the certificate covering it exists and the site operator has accepted it.
In Hazira, Surat. Hazardous areas at Hazira include LNG regasification, gas processing, petrochemical plants and marine terminals. Each operator, such as Shell, Reliance, ONGC or NTPC on their own sites, classifies its own areas. PESO is the national regulator, and SAMS does not classify any site or approve any area.
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.
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.
Zone 1 and Zone 21 (gas and dust) with gas group IIC and temperature class T4, subject to certification. It must not be used in a classified area before its certificate is issued and the site has accepted it.
Likely candidates are lng regasification, gas processing, petrochemical plants, marine terminals. 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.
Hazira is 22 kilometres from Surat and the drive takes about 30 to 35 minutes. Most visitors fly into Surat, and heavy plant traffic and monsoon rain can slow the road.
Hazira combines an LNG terminal, gas and power plants, a manufacturing division and a shipyard, so it has gas-hazard zones, hot-work areas and mixed-use industrial zones. Always get the area classification and equipment rules from the specific operator.
The terminal operator does, through its permit and area classification system, with PESO as national regulator. Rules usually cover approved equipment, permits and charging. Ask the operator's safety team what evidence they need from a supplier before a new handheld may enter.
Other guides for Hazira India, other places in India, and the pages behind them.
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.