Portugal: infrastructure
The Sines LNG import terminal has three storage tanks with a total capacity of 390,000 cubic metres and regasification capacity of 5.6 million tonnes a year, making Sines Portugal's key gas import site.
The IS-04Z1 is an intrinsically safe Android handset designed for Zone 1 and Zone 21, aimed at the refining and polymer complex at Sines, the chemical plants at Estarreja and the pulp, cement and mining sites in between. If you are specifying an explosion proof cell phone for Portugal, 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 Portugal: pre-launch, designed for Zone 1 and Zone 21 (marking target Ex ib IIC T4), with certification in progress and no certificate issued.
Current position: certification in progress, nothing issued, launch targeted 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 |
|---|---|---|
| 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 | Portugal: Sines, ZILS Alentejo, Estarreja | Classified by the site operator |

An intrinsically safe Android smartphone designed for Zone 1 and Zone 21 hazardous areas in Portugal. 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 Portugal market guide.
The Sines LNG import terminal has three storage tanks with a total capacity of 390,000 cubic metres and regasification capacity of 5.6 million tonnes a year, making Sines Portugal's key gas import site.
In 2000 about 85% of Portugal's energy was imported, so most fuel and gas reaches the country through port terminals rather than domestic fields.
Sines on the Atlantic coast hosts an important oil refinery and several petrochemical industries.
Portugal aims to cover 80% of electricity consumption with renewables by 2030 and has developed a hydrogen strategy to reduce gas imports, which may add hydrogen-classified areas.
“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 Portugal. People at Sines say explosion proof, but the concepts differ. Flameproof Ex d suits fixed motors and instruments, while the IS-04Z1 uses intrinsic safety, Ex ib. That suits a handset carried through a refinery, the polymer complex or the LNG terminal, where one person moves between many areas in a shift.
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.
The market guide for Portugal covers Sines, ZILS Alentejo, Estarreja, Matosinhos and Leça, 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.
Portugal is an EU member, so ATEX Directive 2014/34/EU applies to equipment and Directive 1999/92/EC to workplace zoning. Zone 1 and Zone 2 devices should carry CE and Ex markings with instructions in Portuguese where required. Operators usually add their own permit and registration procedures.
Sines hosts Portugal's LNG import terminal, with three storage tanks totalling 390,000 cubic metres and a regasification capacity of 5.6 million tonnes a year. Terminal and port operators set their own induction and device rules, so confirm them before sending equipment.
Yes, Zone 21 dust protection belongs to the same certification programme as the gas marking. In pulp, cement and mineral processing the powder area is the plant, not a corner of it, so check the final certificate and the site's own dust classification with the operator.
Related guides for Portugal and for Portugal.
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.