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. This page explains what to look for in an Ex-proof smartphone for Portugal, and where the IS-04Z1 stands against that list today.
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.
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 |
|---|---|---|
| Ex marking | Group, category, protection concept, gas group, temperature class | II 2 G Ex ib IIC T4 (target) |
| Gas group | IIA, IIB or IIC matched to the area drawing | IIC (target) |
| Temperature class | T-class below the ignition temperature of the gas | T4, 135 °C (target) |
| 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.
“Ex-proof” is shorthand for equipment carrying an explosion-protection marking (the Ex mark) that matches the area it enters. The marking states the protection concept, gas or dust group and temperature class, and it must be backed by a certificate issued by a recognised body, so a phone described as Ex-proof should come with a certificate number you can check.
The IS-04Z1 is designed to carry the marking II 2 G Ex ib IIC T4. That is a target: certification is in progress, no certificate has been issued, and SAMS will publish the certificate numbers when they exist.
In Portugal. A marking check in Portugal compares II 2 G Ex ib IIC T4 with the plant classification. Sines and Estarreja are the gas and vapour Zone 1 case. Pulp, cement and mineral processing make dust the defining zone, and a gas-only device is the wrong tool there, which is why the Zone 21 target matters.
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.
There is no list price yet. SAMS gives indicative pre-launch pricing in writing, against a stated quantity and site, and does not commit to a lead time before certification completes.
The marking target is II 2 G Ex ib IIC T4. It becomes a marking only when the certificate is issued; until then it is a design target.
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.
Other guides for Portugal, other places in Portugal, 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.