Urban setting
The refinery sits in the dense Rio metropolitan area with road links to the city and airport.
Duque de Caxias · IECEx
IECEx Smartphone in Duque de Caxias
Reduc began operating in 1961 near Rio de Janeiro, one of the early refineries built after Petrobras was created in 1953 with a legal monopoly. It hosts the Petrobras Duque de Caxias refinery (Reduc), which started up in 1961, so refining and gas-processing units create Zone 1 areas. This page explains what to look for in an IECEx smartphone for Duque de Caxias, and where the IS-04Z1 stands against that list today.
Pre-launch · certification in progress · Launching Q4 2026
Marking targetEx ib IIC T4Intrinsic safety, Zone 1 / 21 design target · certification in progress
AvailabilityQ4 2026via authorised distributors
Search topicIECEx
DeviceSmartphone
RouteSpecification
WhereDuque de Caxias
Short answer. The SAMS IS-04Z1 is the intrinsically safe smartphone covered here for Duque de Caxias: pre-launch, designed for Zone 1 and Zone 21 (marking target Ex ib IIC T4), with certification in progress and no certificate issued.
Where things stand: the IS-04Z1 has not launched, and none of its four certification routes has produced a certificate yet. A buyer's engineering review is separate from the certificate. Certification status. Place facts reviewed October 2026.
At a glance · IECEx
Checklist: IECEx smartphone for Duque de Caxias
| 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 | Duque de Caxias: Refinery process units, Tank farms and pipelines, Loading and dispatch areas | Classified by the site operator |
Product · Duque de Caxias
The product behind this search: the SAMS IS-04Z1.
SAMS IS-04Z1
An intrinsically safe Android smartphone designed for Zone 1 and Zone 21 hazardous areas in Duque de Caxias. It is pre-launch: IECEx, ATEX and NEC 500 certification is in progress ahead of the Q4 2026 launch.
- IP68 sealed
- 4,000 mAh battery
- 50 MP camera
- Android 16
- Zone 1 / Zone 21 design target
The site · Duque de Caxias
Duque de Caxias: where the IS-04Z1 would work
Who operates there and which kinds of classified area a handset would meet, from the SAMS site research.
Operators and companies on site
- Petrobras (Reduc refinery)
Classified areas to expect
- Refinery process units
- Tank farms and pipelines
- Loading and dispatch areas
- Biofuel (SAF and renewable diesel) processing
Local conditions · Duque de Caxias
Conditions in Duque de Caxias that affect handheld equipment
Large multi-product site
Reduc makes more than 40 products and has a stated capacity of 239,000 barrels a day.
Field notes · Duque de Caxias
More about Duque de Caxias that matters for portable equipment
Duque de Caxias: infrastructure
A natural-gas power unit of 63 MW has served the refinery since 1976, so the site generates part of its own electricity as well as processing fuels and lubricants.
Duque de Caxias: industry on the ground
The Duque de Caxias refinery (Reduc) has operated since 1961, ranks among Brazil's largest by crude capacity, and supplies about 80 percent of the country's lubricants while leading natural gas processing.
Duque de Caxias: geography and layout
The Duque de Caxias refinery complex covers about 13 square kilometres beside Rodovia Washington Luis in the Campos Eliseos district, making it a very large industrial site inside the Rio de Janeiro metropolitan area.
Duque de Caxias: projects and investment
Reduc is listed among the Petrobras refineries receiving modernisation (revamp) projects in the company's refining investment portfolio, alongside Replan and the Presidente Bernardes refinery.
The term · IECEx
What “IECEx” means for a smartphone
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 Duque de Caxias. Petrobras plans US$4.6 billion for Reduc in 2026-2030, which may bring international EPCs and specialists to Duque de Caxias. IECEx offers them a familiar certificate of conformity and schedule of conditions. The IS-04Z1 IECEx certification is in progress, not held.
The route · specification
Specifying an IECEx smartphone for Duque de Caxias
A short checklist for anyone writing or reviewing the specification, with the IS-04Z1 status against each point.
Check on the paper
- Marking
- Equipment group, category, protection concept, gas group and temperature class, matched to the area drawing.
- Certificate and schedule
- A certificate number, issuing body and the schedule of conditions, not a brochure claim.
- Standards edition
- The IEC 60079 or national standard edition the certificate was issued against.
Check for the IS-04Z1
- Marking target
- II 2 G Ex ib IIC T4: a target, not yet a certificate.
- Certificate status
- IECEx, ATEX, UKEX and NEC 500 in progress; none issued.
- Operator approval
- Separate from the certificate and handled with the site operator.
Questions · Duque de Caxias
Frequently asked questions
Can we buy an IECEx smartphone in Duque de Caxias today?
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.
What does an IECEx smartphone in Duque de Caxias cost?
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.
Does the IS-04Z1 hold an IECEx certificate?
No. The IECEx certificate is in progress and has not been issued. SAMS will publish the number when it exists.
Which areas at Duque de Caxias would use it?
Likely candidates are refinery process units, tank farms and pipelines, loading and dispatch areas, biofuel (saf and renewable diesel) processing. Which areas are classified, and to what zone, is set by the site operator's own area classification drawings.
Is intrinsically safe the same as explosion proof?
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.
Is Duque de Caxias refinery work usually tied to shutdown cycles?
Large refineries run planned turnarounds, and Reduc is in Petrobras' revamp programme. Exact dates are set by the operator, so confirm shutdown windows, contractor induction rules and permit-to-work practice before scheduling visits with portable equipment.
Which Reduc areas typically need Ex-rated mobile equipment?
Process units, lubricant and gas processing areas, tank farms and loading points commonly contain classified zones. Each area's gas group and temperature class is defined in the refinery's classification drawings, so ask the safety department for them before specifying a handheld device.
Does the new biofuel processing change classification?
Possibly. SAF and renewable diesel processing is a different product stream from the original refinery units, so its area classification may differ. Do not assume one marking fits all. Ask Petrobras for the classification of the exact unit before choosing a device.
Related guides
Keep exploring
Related guides for Duque de Caxias and for Brazil.
ATEX and IECEx Mobile Phone Distributor in Duque de CaxiasSame place, different guide
Rugged Mobile Phone in Duque de CaxiasSame place, different guide
Hazardous Area Mobile Phone in Duque de CaxiasSame place, different guide
Industrial Mobile Phone Distributor in Duque de CaxiasSame place, different guide
Explosion-Proof Mobile Phone in Duque de CaxiasSame place, different guide
Intrinsically Safe Mobile Phone Distributor in Duque de CaxiasSame place, different guide
ATEX and IECEx Mobile Phone Distributor in Brazil RefineriesElsewhere in Brazil
ATEX and IECEx Mobile Phone Distributor in Rio de JaneiroElsewhere in Brazil
ATEX and IECEx Mobile Phone Distributor in Santos BasinElsewhere in Brazil
ATEX and IECEx Mobile Phone Distributor in Brazil Oil PlatformsElsewhere in Brazil
Brazil market guideCertification route and regulators
All guides for BrazilEvery route we cover
Certification statusWhat is in progress
Enquiry · Duque de Caxias
Ask about the IS-04Z1 for Duque de Caxias, Brazil
Send the site, zone and gas group and roughly how many handsets. We reply by email with the datasheet and the certification schedule.
Enquiry · Duque de Caxias
Launching Q4 2026
Planning for Duque de Caxias?
Send the zone and gas group of your site and we will reply with the datasheet and schedule.