The IS-04Z1 is an intrinsically safe Android handset designed for Zone 1 and Zone 21, built for refinery and cracker rounds on the west coast, mill and recovery boiler areas inland, and winter shifts in the north where a device is handled through two layers of glove. If you are specifying an IECEx mobile phone for Sweden, 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 Sweden: pre-launch, designed for Zone 1 and Zone 21 (marking target Ex ib IIC T4), with certification in progress and no certificate issued.
For the record, no certificate exists for the IS-04Z1 today. The programme is under way ahead of a Q4 2026 launch. Operator approval runs on its own timeline. Certification status. Place facts reviewed October 2026.
| Check | What to look for | IS-04Z1 today |
|---|---|---|
| Certificate of conformity | Number checkable on the IECEx online register | In progress; not issued |
| Standards edition | The IEC 60079 edition the certificate cites | Stated on the certificate when issued |
| Schedule of conditions | Limits of use, batteries and accessories | Published with the certificate |
| Where it applies | Sweden: Lysekil, Gothenburg river bank, Stenungsund | Classified by the site operator |
An intrinsically safe Android smartphone designed for Zone 1 and Zone 21 hazardous areas in Sweden. It is pre-launch: IECEx, ATEX and NEC 500 certification is in progress ahead of the Q4 2026 launch.
The classified areas, operators and sites below are the ones covered in the SAMS Sweden market guide.
Preem's refineries provide roughly half of all petroleum products consumed in Sweden and nearly 65% of its production is sold abroad, mainly in north-west Europe, so its refineries are large and busy classified-area sites.
The Port of Gothenburg is the largest in the Nordic countries and handles nearly 30% of Sweden's foreign trade, about 39 million tonnes a year, so most imported equipment can enter through one port.
The Lysekil refinery plan began in 1945 when the consumer-owned oil company OK was formed, but the plant was only inaugurated in 1975, and it remains one of the area's main employers.
Transport, especially aviation fuel and cars, is still majority powered by fossil fuels, so fuel depots, airports and filling stations remain the largest flammable-liquid networks outside refineries.
IECEx is the international scheme for certifying equipment used in explosive atmospheres. A certificate of conformity is issued by an accredited certification body against a specific edition of the IEC 60079 standards and carries a schedule of conditions of safe use. It is not a legal requirement in most countries on its own, but many national schemes accept it as the technical basis.
The IECEx certificate for the IS-04Z1 is in progress and has not been issued. The marking target is Ex ib IIC T4, the intrinsic safety concept for Zone 1 gas with the hardest gas group (IIC) and a 135 °C temperature class.
In Sweden. IECEx matters in Sweden through multinational owners and visiting contractors at the Stenungsund cracker cluster, at SSAB and at LKAB, who read the international scheme first. A certificate of conformity and its schedule of conditions would give them a common reference. The IS-04Z1 certification is in progress and not yet issued.
A short checklist for anyone writing or reviewing the specification, with the IS-04Z1 status against each point.
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.
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.
No. The IECEx certificate is in progress and has not been issued. SAMS will publish the number when it exists.
The market guide for Sweden covers Lysekil, Gothenburg river bank, Stenungsund, Nynäshamn, among others. Site-level pages are linked below.
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.
Winter temperatures can be well below freezing, particularly in the north, which reduces battery capacity and affects touchscreen use with gloves. Check the lowest rated ambient temperature on the certificate, glove-friendly input and whether charging is possible outside the classified area.
Wood and biomass fuel handling creates combustible dust, so Zone 21 or Zone 22 areas may exist at boiler plants and fuel stores. Check that the device carries a dust marking suitable for the classification, not only a gas marking, and confirm with the plant operator.
Gloved operation is a design consideration, but screen response with gloves, physical key behaviour and one-handed use should be tested on the first day of a trial rather than accepted on paper. Use an evaluation unit on a real winter round.
Related guides for Sweden and for Sweden.
Send the site, zone and gas group and roughly how many handsets. We reply by email with the datasheet and the certification schedule.
Tell us the zone, gas group and operator. We will send the datasheet and the certification schedule.
