Limited classified areas
Most Free Zone factories are light manufacturing; classified areas are concentrated around fuel storage and handling.
Aerial photography of the Isaac Sabba refinery shows it on the Negro River in the Amazon forest with oil tankers alongside, reflecting river-borne supply of crude and products. Hazardous areas arise mainly at the Ream refinery site and fuel handling rather than in the factories; the refinery has reportedly stopped refining crude since early 2025. If you are specifying an IECEx smartphone for Manaus Free Trade Zone, 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 Manaus Free Trade Zone: 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 |
|---|---|---|
| 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 | Manaus Free Trade Zone: Fuel storage and loading, Refinery and fuel logistics, Port petroleum and chemical handling | Classified by the site operator |

An intrinsically safe Android smartphone designed for Zone 1 and Zone 21 hazardous areas in Manaus Industrial Zone. It is pre-launch: IECEx, ATEX and NEC 500 certification is in progress ahead of the Q4 2026 launch.
A short profile of the site and the kinds of classified area that matter for portable equipment.
Most Free Zone factories are light manufacturing; classified areas are concentrated around fuel storage and handling.
Manaus is served by the Negro and Amazon rivers and by an international airport, with limited road links, so deliveries from the south-east take longer.
Transport links include Eduardo Gomes International Airport and the Rio Negro Bridge, and the city sits on the Rio Negro, making river and air the main freight routes.
The Manaus Free Trade Zone was formalised by Law 3.173 on 6 June 1957 and for its first ten years operated from a rented warehouse in the Port of Manaus.
Federal tax exemptions administered by SUFRAMA and SUDAM created the comparative advantage that attracted manufacturers to the zone, so supplier and import procedures follow its own administrative regime.
The Manaus refinery, long known as Reman and the Isaac Sabba refinery on the Rio Negro, was one of two Petrobras refineries sold (it is now Ream), so the site operator is no longer Petrobras.
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 Manaus Free Trade Zone. The Free Economic Zone hosts electronics and other manufacturers, some of them part of international groups. For fuel and port petroleum handling those groups may know IECEx, with its certificate of conformity and schedule of conditions. The IS-04Z1 IECEx certification is in progress.
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.
No. The IECEx certificate is in progress and has not been issued. SAMS will publish the number when it exists.
Likely candidates are fuel storage and loading, refinery and fuel logistics, port petroleum and chemical handling. 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.
Mostly fuel handling: the refinery, tank and terminal areas and product loading, plus solvent, paint and battery processes in some factories. Zones are set by each site's classification study, so ask the plant safety team which areas need certified mobile devices.
Only where flammable gases, vapours or dusts can occur, such as fuel storage, solvent and coating areas. Many electronics assembly halls are non-hazardous, so check the plant's area classification before buying certified devices for every user.
Manaus is served by the Negro and Amazon rivers and an international airport, with limited road links, so deliveries from the south-east take longer. Plan lead times and spares accordingly, and confirm delivery routes with the supplier or distributor concerned once certification is complete.
Other guides for Manaus Industrial Zone, other places in Brazil, and the pages behind them.
Share the site details and quantity. You will get the datasheet and the certification schedule back by email; pricing is indicative only until launch.
Name the site and the operator and we will send what is available before launch.