Crackers
The site has three ethylene crackers with combined capacity of 3.6 million tons a year, the newest commissioned in 2018.
Baytown Refinery · hazardous area
Hazardous Area Smartphone in Baytown Refinery
Baytown lies on the Houston Ship Channel about 26 miles east of Houston. ExxonMobil has made a final investment decision on a reconfiguration project at Baytown to raise production of higher-demand products such as base stocks and diesel. If you are specifying a hazardous area smartphone for Baytown, Texas (ExxonMobil Baytown complex), this page covers the markings, the approvals and the current certification status of the IS-04Z1.
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 topichazardous area
DeviceSmartphone
RouteSpecification
WhereBaytown Refinery
Short answer. The SAMS IS-04Z1 is the intrinsically safe smartphone covered here for Baytown, Texas (ExxonMobil Baytown complex): 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. An operator's own vendor approval is a separate step. Certification status. Place facts reviewed October 2026.
At a glance · hazardous area
Checklist: hazardous area smartphone for Baytown, Texas (ExxonMobil Baytown complex)
| Check | What to look for | IS-04Z1 today |
|---|---|---|
| Zone | 0, 1 or 2 for gas; 20, 21 or 22 for dust | Designed for Zone 1 and Zone 21 |
| Gas group | IIA, IIB or IIC | IIC (target) |
| Area drawing | The operator's own classification drawing | Decided by the site operator |
| Where it applies | Baytown, Texas (ExxonMobil Baytown complex): Refinery process units, Ethylene cracking units, Chemical plant units | Classified by the site operator |
Product · Baytown Refinery
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 Baytown Refinery. 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 · Baytown, Texas (ExxonMobil Baytown complex)
Baytown, Texas (ExxonMobil Baytown complex): 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
- ExxonMobil
- Chevron Phillips Chemical
- Covestro
Classified areas to expect
- Refinery process units
- Ethylene cracking units
- Chemical plant units
- Ship Channel storage and docks
Local conditions · Baytown, Texas (ExxonMobil Baytown complex)
Conditions in Baytown, Texas (ExxonMobil Baytown complex) that affect handheld equipment
Projects
A blue hydrogen facility is under construction, so project and contractor activity continues alongside operations.
Field notes · Baytown, Texas (ExxonMobil Baytown complex)
More about Baytown, Texas (ExxonMobil Baytown complex) that matters for portable equipment
Baytown, Texas (ExxonMobil Baytown complex): people and language
The complex has a workforce of about 7,000 people, and the 2023 expansion supported over 3,500 construction jobs and 200 permanent roles.
Baytown, Texas (ExxonMobil Baytown complex): projects and investment
ExxonMobil is developing a large blue hydrogen facility at Baytown, adding a new type of process plant to the complex.
Baytown, Texas (ExxonMobil Baytown complex): industry on the ground
ExxonMobil's Baytown complex covers about 3,400 acres on the Houston Ship Channel, around 25 miles east of Houston, and includes a refinery, chemical plant, olefins plant, plastics plant and a global technology center.
Baytown, Texas (ExxonMobil Baytown complex): projects and investment
An advanced recycling facility at Baytown has operated since December 2022, with capacity to process 80 million pounds of plastic waste a year.
The term · hazardous area
What “hazardous area” means for a smartphone
A hazardous area is a place where flammable gas, vapour or combustible dust may be present. Standards divide these into zones: Zones 0, 1 and 2 for gas and vapour, and Zones 20, 21 and 22 for dust. Zone 1 and Zone 21 are the tier where an explosive atmosphere is likely to occur in normal operation, which is where the IS-04Z1 is designed to work. Anything carried in must be marked for the zone, gas group and temperature class of the area.
No certificate has been issued for the IS-04Z1 yet, so it must not be taken into a classified area until the certificate covering it exists and the site operator has accepted it.
In Baytown, Texas (ExxonMobil Baytown complex). Baytown has refinery process units, ethylene cracking units, chemical plant units and Ship Channel storage and docks. ExxonMobil, Chevron Phillips Chemical and Covestro each run large plants, and each operator classifies its own areas as Class I Division or Zone locations. SAMS does not classify any area.
The route · specification
Specifying a hazardous area smartphone for Baytown Refinery
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 · Baytown Refinery
Frequently asked questions
Can we buy a hazardous area smartphone in Baytown Refinery 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 a hazardous area smartphone in Baytown Refinery cost?
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.
Which hazardous areas is the IS-04Z1 designed for?
Zone 1 and Zone 21 (gas and dust) with gas group IIC and temperature class T4, subject to certification. It must not be used in a classified area before its certificate is issued and the site has accepted it.
Which areas at Baytown, Texas (ExxonMobil Baytown complex) would use it?
Likely candidates are refinery process units, ethylene cracking units, chemical plant units, ship channel storage and docks. 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.
How are large projects at Baytown affecting contractor demand?
Expansions such as the 2023 chemical lines supported 3,500 construction jobs, so peak construction periods bring many contractors. Confirm schedules and induction requirements with the operator.
What classified areas does Baytown have?
Process units, olefins and polymer plants, tank farms and loading areas have gas and dust hazards, with hydrogen areas needing IIC. Request the site classification drawings for exact zones.
What makes Baytown different from a single-refinery site?
ExxonMobil's complex, founded in 1919, combines a refinery with chemical and ethylene units, and Chevron Phillips and Covestro also run large plants nearby. Areas therefore range from process units to crackers and storage. Confirm which plant and area a task is in, and what the operator requires.
Related guides
Keep exploring
Other guides for Baytown Refinery, other places in United States, and the pages behind them.
IECEx Mobile Phone Distributor in Baytown RefinerySame place, different guide
ATEX and IECEx Mobile Phone in Baytown RefinerySame place, different guide
Intrinsically Safe Mobile Phone Distributor in Baytown RefinerySame place, different guide
Ex-Proof Mobile Phone Distributor in Baytown RefinerySame place, different guide
Rugged Mobile Phone in Baytown RefinerySame place, different guide
Industrial Mobile Phone in Baytown RefinerySame place, different guide
ATEX and IECEx Mobile Phone Distributor in Midland OdessaElsewhere in United States
ATEX and IECEx Mobile Phone Distributor in Beaumont TexasElsewhere in United States
ATEX and IECEx Mobile Phone Distributor in US LNG TerminalsElsewhere in United States
ATEX and IECEx Mobile Phone Distributor in Baton RougeElsewhere in United States
United States market guideCertification route and regulators
All guides for United StatesEvery route we cover
Certification statusWhat is in progress
Enquiry · Baytown, Texas (ExxonMobil Baytown complex)
Ask about the IS-04Z1 for Baytown, Texas (ExxonMobil Baytown complex), United States
Send the site, zone and gas group and roughly how many handsets. We reply by email with the datasheet and the certification schedule.
Enquiry · Baytown, Texas (ExxonMobil Baytown complex)
Launching Q4 2026
Planning for Baytown Refinery?
Tell us the zone, gas group and operator. We will send the datasheet and the certification schedule.