Pipeline link
Crude oil reaches the refinery by pipeline from a tanker port a few kilometres away, so classified areas are spread between port and refinery sites.
Gothenburg hosts Sweden's largest general energy port, with about 2,200 tanker calls a year and 20.7 million tonnes of energy products handled in 2025, and the Preemraff Göteborg refinery nearby. Göteborg Landvetter Airport is 25 km south-east of the centre, and the city has the largest tram network in Scandinavia with over 80 km of double track, though soft ground means there is no metro. If you are specifying an explosion proof smartphone for Gothenburg (Göteborg), 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 Gothenburg (Göteborg): 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. 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 |
|---|---|---|
| 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 | Gothenburg (Göteborg): Refinery process units, Tanker berths and loading arms, Pumping stations and valve areas | Classified by the site operator |

An intrinsically safe Android smartphone designed for Zone 1 and Zone 21 hazardous areas in Göteborg. 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.
Crude oil reaches the refinery by pipeline from a tanker port a few kilometres away, so classified areas are spread between port and refinery sites.
A maritime climate with cool, damp winters on the west coast; outdoor equipment should tolerate rain and low temperatures.
The Götaverken shipbuilding company was founded in 1841 and stayed in business until 1989, which left a legacy of marine engineering skills and waterfront industrial land.
Major companies operating plants in the area include SKF, Volvo cars and trucks, and Ericsson, and Volvo Cars is the largest single employer in Gothenburg, not counting supplier jobs.
The Port of Gothenburg handles nearly 30 percent of Sweden's foreign trade; crude oil was its main import at about 20 million tonnes in 2013, and 24 scheduled rail shuttles serve Norway and Sweden.
Gothenburg lies on Sweden's west coast about halfway between Copenhagen and Oslo, with a rocky archipelago offshore and the Kattegat, an arm of the North Sea, beyond.
“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 Gothenburg (Göteborg). Around tanker berths and loading arms, people say explosion-proof loosely. In practice, flameproof Ex d suits fixed pump motors and junction boxes, while a handheld phone relies on intrinsic safety. Refinery units, valve areas and bulk fuel storage each need a defined protection concept chosen by the operator's engineers.
A short checklist for anyone writing or reviewing the specification, with the IS-04Z1 status against each point.
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.
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, tanker berths and loading arms, pumping stations and valve areas, bulk fuel tank storage. 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.
Yes. The city sits on the west coast with an international airport, a large port and regional rail and road links, and a deep technical workforce from local industry and universities. Plan travel to individual sites separately and confirm each site's induction rules.
The climate is mild for its latitude, but winters are cold and windy and rain is regular, with salt air near the harbour. Typically users want good ingress protection, battery performance in cold weather and routine cleaning of exposed connectors.
The Energy Port runs ISPS security level 1 with gate controls, including random alcohol testing at Gate 1, so visitors and contractors pass formal entry checks. Device approval is separate and set by the operator. Ask the port or refinery HSE team what evidence they expect for a phone.
More on Göteborg, and on other places in Sweden.
Send the site, zone and gas group and roughly how many handsets. We reply by email with the datasheet and the certification schedule.
Send the zone and gas group of your site and we will reply with the datasheet and schedule.