Gas detection
Portable and fixed detectors, tank scopes and oxygen analysers.
- Instrument inspection and calibration
- Reference-gas checks and calibration results
Service
Calibration of gas detection and measuring instruments
Calibration with traceable reference gases and instruments, on board so nothing has to leave the vessel, with the deviation found and the result stated on the certificate.
Governing requirementSOLAS XI-1 Reg. 7 · SOLAS VI Reg. 3 · MARPOL Annex I Reg. 31 · IMO Res. MEPC.108(49)
The obligation
Why it is required
SOLAS XI-1 Regulation 7 requires every ship to carry an appropriate portable atmosphere testing instrument for enclosed spaces, and SOLAS VI Regulation 3 requires instruments for the cargo atmosphere. MARPOL Annex I Regulation 31 and IMO Resolution MEPC.108(49) govern the oil discharge monitoring equipment on tankers. None of it means anything if the instrument reads low, which is why calibration is what turns a reading into evidence.
Service intervals at a glance
| Equipment and work | Interval | Reference |
|---|---|---|
| Portable gas detectors: calibration | At the maker's stated interval, normally every 6 or 12 months | Maker's instructions |
| Portable gas detectors: bump test | Before each use | Maker's instructions |
A summary of the intervals described on this page. The instruments cited and the requirements of the vessel's flag and class prevail; the scope is confirmed for each enquiry.
Scope of work
Complete coverage.
Clearly defined.
A concise view of the equipment we service. Your quotation confirms the work required for your vessel.
Tank & pollution monitoring
UTI, tank gauging, VECS, ODME, OWS and OMD.
- Inspection and calibration of monitoring systems
- Adjustment and associated instrument support
Measurement instruments
Pressure, temperature, force and alcohol measurement.
- Gauges, thermometers, calibrators and dynamometers
- Inspection, calibration and replacement parts
How we prove competence
Why us
- Traceable reference gases and instruments, with the traceability stated on every certificate
- Our own calibration bench, so instruments can be brought ashore where the work needs it
- Attendance on board so instruments do not have to leave the vessel
- Certificates state the reference gas, the deviation found before adjustment and the result after
Deliverables
What you receive
- Calibration certificate per instrument, with serial number and next due date
- As-found and as-left readings
- Traceability reference for the standard used
- Service date records for your fleet planning
From our work
Calibration in the field
OUR SERVICE REGIONSTürkiye. Europe.
Türkiye. Europe.
One point of contact.
Our own teams in Türkiye and Europe coordinate your vessel’s service and supply requirements. Choose a country to see the port directory and local coordination details.
Where we attend vessels for calibration
- Türkiye
- Tuzla, Izmit, Yalova, Aliaga, Izmir, Mersin, Iskenderun and other ports in the directory
- Netherlands
- Rotterdam, Europoort, Moerdijk, Vlissingen, Amsterdam and other ports in the directory
- Belgium
- Antwerp, Ghent, Zeebrugge and other ports in the directory
- Germany
- Hamburg, Bremen, Bremerhaven, Wilhelmshaven and other ports in the directory
- France
- Dunkirk, Le Havre, Saint-Nazaire, Marseille and other ports in the directory
Calling in the United States? New York & New Jersey service enquiries are coordinated through our authorised partner network.
Questions
Frequently asked
Is a bump test the same as a calibration?
No. A bump test confirms the sensor responds; a calibration adjusts the reading against a known reference gas and records the deviation. Port state control asks for the calibration record.
Can you calibrate on board?
Yes, for portable detectors, fixed systems, UTI tapes and pressure instruments. ODME work is done on board as well.
How often should a portable gas detector be calibrated?
At the maker's stated interval, normally every 6 or 12 months, with a bump test before each use. We confirm against the model.
Do you supply calibration gas?
Yes, in the mixtures the instruments on board require, delivered with the service attendance.
Combine in the same attendance
Other services
Fire Fighting (FFE)
Portable and fixed systems, BA and EEBD, detection.
More
Lifeboat, Davit & Winch
Annual thorough examination, overhaul and release gear.
More
Load Test
Five-yearly dynamic tests with certified water bags.
More
Liferaft & LSA
Approved liferaft station, HRU, lifejackets, loose LSA.
More
Analysis
Foam, dry powder, sprinkler water, breathing air, potable water.
More
GMDSS Radio Survey
Annual radio survey, VDR APT, EPIRB, SART, SSAS.
More
Ship Supply
IMPA coded supply from our own warehouses.
MoreBEFORE YOUR ENQUIRY
Preparing a marine calibration enquiry
Instrument details
Send maker, model, serial number, measuring range and previous certificate. For gas detectors, identify the installed sensors and gases to be measured.
Working condition
Describe faults, alarms, failed checks or missing accessories. Include probes, sampling lines and relevant docking stations in the equipment list.
Required result
State the requested calibration or functional check, vessel requirements and delivery deadline. The quotation should identify scope, supporting records and any repair or replacement separately.
