Crude slate
The refinery processes low-sulphur Bombay High and Nigerian crudes and high-sulphur Middle East crude, and supplies BS VI fuels to the Delhi NCR region.
Mathura in Uttar Pradesh is home to Indian Oil's inland refinery, commissioned on 19 January 1982 and now processing 8 million tonnes of crude a year. The refinery began producing BS VI standard fuels for Delhi NCR ahead of the April 2020 mandate, showing continuing upgrade work. An ATEX and IECEx mobile phone distributor in Mathura, Uttar Pradesh would carry the IS-04Z1 to these buyers once certification completes.
Pre-launch · certification in progress · Launching Q4 2026
Short answer. Mathura, Uttar Pradesh has no appointed SAMS distributor yet: the IS-04Z1 is pre-launch (certification in progress, no certificate issued, launch planned for Q4 2026), and distributor applications are open.
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. 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 |
|---|---|---|
| Marking | II 2 G Ex ib IIC T4 on the rating plate | Design target; not yet marked |
| EU-type examination certificate | Notified body number and certificate ID | In progress with TÜV; not issued |
| IECEx certificate of conformity | Number listed on the IECEx online register | In progress; not issued |
| Where it applies | Mathura, Uttar Pradesh: Product loading gantries, Pipeline pumping stations, Refinery process units | Classified by the site operator |

An intrinsically safe Android smartphone designed for Zone 1 and Zone 21 hazardous areas in Mathura 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.
The refinery processes low-sulphur Bombay High and Nigerian crudes and high-sulphur Middle East crude, and supplies BS VI fuels to the Delhi NCR region.
The refinery is about 50 km from the Taj Mahal in Agra and lies in the Delhi-Agra corridor, so road logistics are straightforward. Summers are generally hot and dusty.
The refinery received the Best of All Rajiv Gandhi National Quality Award in 1998, and a corporate postal stamp was issued for its environmental contribution.
Mathura Refinery, Indian Oil's sixth refinery, was commissioned on 19 January 1982 after construction began in October 1972, so its older units are over 40 years old.
The refinery processes low-sulphur Bombay High crude, imported Nigerian low-sulphur crude and high-sulphur Middle Eastern crude, so process conditions vary between crude types.
Mathura city is 162 kilometres south-east of Delhi and about 15 kilometres from Vrindavan, on the Yamuna river.
ATEX is the European legal framework for equipment used in explosive atmospheres (Directive 2014/34/EU). IECEx is the international certification scheme built on the IEC 60079 standards. Buyers outside Europe often ask for both: an IECEx certificate is the technical evidence most national regimes build on, while ATEX is the legal route into the European market.
For the IS-04Z1 both routes are in progress with TÜV in Germany and neither certificate has been issued. The marking target is II 2 G Ex ib IIC T4: equipment Group II (surface industry), Category 2 (Zone 1 gas), protection concept ib (intrinsic safety), gas group IIC and temperature class T4.
In Mathura, Uttar Pradesh. The inland refinery at Mathura is run by one operator whose HSE and procurement teams set clear requirements, while pipeline and shutdown contractors may bring international expectations. A dual ATEX and IECEx route addresses both. The IS-04Z1 has no certificate yet, and both certification routes are in progress.
A distributor for Mathura, Uttar Pradesh would carry the IS-04Z1 after certification completes; the Q4 2026 launch is the planning date and no appointment has been made. SAMS reviews applicants one by one and prefers companies with their own Ex-competent technical and service staff, since certified devices must not be repaired outside approved channels.
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.
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.
Not yet. Both routes are in progress with TÜV in Germany and no certificate has been issued. Any listing that says otherwise is wrong.
Likely candidates are refinery process units, crude and product tank farms, product loading gantries, pipeline pumping stations. Which areas are classified, and to what zone, is set by the site operator's own area classification drawings.
Apply through the distributor page with your company details and the territory you cover. SAMS reviews applications company by company and has not yet granted a territory for Mathura, Uttar Pradesh.
Mathura is 162 kilometres south-east of Delhi, so most visitors fly into Delhi and continue by road or rail. Agree gate access, security passes and induction times with the operator well before travelling.
The refinery was commissioned in 1982 and expanded in 1989, so units of different ages may have different layouts and classifications. Ask the operator for the current classification of each unit you visit.
It removes jetty and ship-loading areas, but process units, tank farms, loading gantries and pipeline pumping stations remain classified. Check the classification of each area you work in. Confirm with the operator which of these areas allow handheld devices.
Other guides for Mathura India, other places in India, and the pages behind them.
Tell us what you need to equip and where. The SAMS team answers by email with the datasheet and where each certification route stands.
Send the zone and gas group of your site and we will reply with the datasheet and schedule.