Wharf
TOPS states that the 970-metre wharf can berth more than 11 vessels at once, including drill ships, semi-submersibles and jack-up rigs.
Loyang Offshore Supply Base in eastern Singapore, near Changi Airport, is run by Toll Offshore Petroleum Services (TOPS). The 320,000 square metre base combines a 970-metre wharf, workshops, warehouses and hazardous-materials storage supporting offshore oil and gas work. If you are specifying an intrinsically safe mobile phone for Loyang Offshore Supply Base, 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 Loyang Offshore Supply Base: 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 |
|---|---|---|
| Level of protection | ia, ib or ic matched to the zone | ib, for Zone 1 |
| Entity parameters | Uo, Io and Po within the device limits | Published with the certificate |
| Accessories | Chargers and cases certified with the device | Defined at certification |
| Where it applies | Loyang Offshore Supply Base: Offshore equipment workshops, Hazardous materials storage, Wharf and vessel quay handling | Classified by the site operator |

An intrinsically safe Android smartphone designed for Zone 1 and Zone 21 hazardous areas in Loyang Offshore. It is pre-launch: IECEx, ATEX and NEC 500 certification is in progress ahead of the Q4 2026 launch.
The companies on site and the hazardous-area types a handset is likely to meet there.
TOPS states that the 970-metre wharf can berth more than 11 vessels at once, including drill ships, semi-submersibles and jack-up rigs.
On-site services include vessel testing and afloat repairs, hot works, modular and steel fabrication, and storage for hazardous materials including Class 1.4 explosives.
Security is manned around the clock with strict access requirements and video surveillance, so visitors and contractors should expect pre-registration and screening at the gate.
The Loyang base was redeveloped in 2008 with an investment of about 325 million dollars, turning it into a modern offshore supply facility run by Toll Offshore Petroleum Services.
The surrounding Loyang industrial estate in Pasir Ris mainly hosts aviation-related services because of its closeness to Changi Airport, so visitors will find airport-linked businesses alongside the offshore supply base.
Its wharf can serve more than 11 vessels at the same time, so supply boats and offshore equipment move through the base continuously.
Intrinsic safety limits the electrical and thermal energy in a circuit so that neither a spark nor a hot surface can ignite a gas or dust atmosphere, even when a fault occurs. The ib level, used for Zone 1, tolerates one fault. It is the usual way to make a handheld device that a worker carries continuously through a hazardous area.
The IS-04Z1 is designed on this principle for Zone 1 and Zone 21 (marking target II 2 G Ex ib IIC T4). Intrinsic safety is a design basis, not a certificate: certification is in progress and none has been issued yet.
In Loyang Offshore Supply Base. Staff at a supply base do receiving, inspection and quayside handling more than process rounds. Where a classified area does exist, such as fuel or chemical storage, a handheld intrinsically safe device lets them scan, photograph and record without leaving it. The IS-04Z1 is designed for Zone 1 use.
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.
The circuits are designed to limit energy so a spark or hot surface cannot ignite a gas or dust atmosphere, even with one fault (level ib, Zone 1). Certification of that design is in progress.
Likely candidates are offshore equipment workshops, hazardous materials storage, wharf and vessel quay handling, hot works and afloat repair areas. 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.
The base is operated by Toll Offshore Petroleum Services, part of Toll Group, and covers 32 hectares in eastern Singapore. Because it is a managed logistics site, tenant and contractor rules are normally set by the operator and by each tenant's own HSE team.
Yes in places: workshops, fuel and chemical stores, and equipment being prepared for offshore service can create classified areas, while the wharf area is mostly open air. The classification varies by building and tenant, so ask the tenant for its zone plan.
Not wholly. The base has workshops, storage and quay handling, and which tenants hold classified areas has not been verified. Chemical and fuel storage may be classified. Ask the tenant's HSE team or the base operator before assuming an Ex rating is required for the task.
Related guides for Loyang Offshore and for Singapore.
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.