Maritime inspection · Turkey
Ultrasonic Thickness Measurement for Ships and Yachts at Antalya
Antalya is better known for cruise calls and holidays than for heavy cargo, but its port still handles general cargo, bulk minerals and agricultural exports, and the coast around it supports a busy yacht and workboat trade. Atlantis technicians travel from India to the vessel. Gauging is planned around the port's seasonal pattern, berth stays and the lay-by time that yachts and smaller commercial ships spend alongside.
Cargo and cruise at one port
Antalya's main port handles general cargo and bulk alongside seasonal cruise calls, so a mobilisation can serve a coaster discharging minerals one day and a visiting vessel's tender or service craft the next.
Steel yachts and workboats
The wider Antalya coast builds and refits yachts and workboats. Steel hulls and tanks on these vessels respond well to ultrasonic gauging, particularly before a refit or a sale.
Mediterranean ECA scrubber piping
Ships calling inside the Mediterranean ECA that burn high-sulphur fuel run exhaust gas cleaning systems whose wash-water and overboard piping benefit from regular wall-thickness checks.
Inspection services for ships at Antalya
Each service has its own page with the method, the class requirements and what the report contains.
Ultrasonic Thickness Measurement (UTM)
Hull, tank, deck and bulkhead gauging recorded on the class thickness-measurement formats, with sketches and corrosion flagged against the allowable margins.
ExploreSpecial Survey Thickness Measurement
Gauging for the 5, 10, 15, 20 and 25-year special (renewal) surveys and intermediate surveys, plus pre-docking steel estimates.
ExploreCAS (Condition Assessment Scheme)
Thickness measurement and survey support for the IMO Condition Assessment Scheme, and what CAS asks of an older tanker today.
ExploreCAP Thickness Measurement
Gauging and close-up survey data for a Condition Assessment Programme, the voluntary class service charterers ask for on older tankers and bulk carriers.
ExploreESP Gauging
Thickness measurement and close-up survey support for oil tankers, chemical tankers and bulk carriers under the ESP Code.
ExploreHull Structural Integrity
Substantial and excessive corrosion, pitting, grooving, buckling and fatigue cracks, with magnetic particle and penetrant crack detection.
ExploreShip Piping Inspection
Wall-thickness gauging of cargo, ballast, fuel, sea-water and fire-main piping, with minimum-wall checks and isometric sketches.
ExploreScrubber Piping Inspection
EGCS wash-water and overboard discharge piping, the hull penetration area and scrubber welds, checked between dockings.
ExploreIHM (Inventory of Hazardous Materials)
IHM Part I surveys, sampling and maintenance for the EU Ship Recycling Regulation and the Hong Kong Convention.
ExploreMarine NDT Services
Every NDT method we use on ships, from visual inspection and MPI to PAUT and ACFM, chosen by the defect you are looking for.
ExploreAntalya: cruise harbour, cargo port and yacht coast
Antalya lies on the Gulf of Antalya on Turkey's Mediterranean coast, with the Taurus mountains close behind and a long tourist coastline stretching east and west. The commercial port, a few kilometres from the city, handles general cargo, bulk minerals and agricultural produce for export, along with a busy cruise terminal in season. The anchorage in the gulf is open to the south, so southerly swell can restrict launch work at times, though the sheltered berths inside the port are more reliable.
Ship traffic is varied rather than heavy. Coasters and small general cargo ships carry minerals, building materials and produce, occasional bulk carriers load or discharge, and cruise ships call through the season, sometimes with their own tenders and service craft working the harbour. Beyond the commercial port, marinas and yacht yards along the coast handle motor yachts and sailing vessels, some of which have steel or aluminium hulls that benefit from thickness checks before refit or sale. Antalya also sees ferries and passenger craft serving local routes.
For inspection, this variety means the gauging demand is distributed across several vessel types rather than concentrated in a single trade. Cargo ships need holds, hatch covers and ballast tanks checked, steel yachts need shell and tank plating measured, and cruise tenders and workboats need hull checks before service. There is no large ocean-going drydock at Antalya, so merchant ships needing a renewal survey generally go to the Marmara or to another Mediterranean yard, and readings taken here are used to plan that docking.
Where gauging happens in and around Antalya
At the commercial port, cargo ships are gauged alongside during their stay. Holds are measured as discharge frees them, hatch covers and coamings are checked from the deck, and ballast tanks are entered once the crew have emptied and ventilated them and the master has issued the permit. Cruise ships offer very limited windows, so work there is restricted to tenders, service craft and defined spaces that the ship's technical team releases. Access is through the port's security procedures and arranged via the ship's agent.
Yachts and smaller commercial vessels are gauged at marinas, repair quays or on slipways along the coast, where the yard or marina sets the rules and the vessel can be supported or hauled out. A steel yacht with a hull survey in prospect can be measured over several days, including tanks and keel structure when accessible. For ships at anchor in the gulf, launches are arranged through the agent and used when the sea allows, with the most valuable readings taken first.
- Antalya commercial port cargo berths — hold, hatch cover and coaming gauging on coasters and small bulk carriers during cargo work
- Cruise terminal — hull and tank checks on tenders and service craft released by the ship's technical team
- Anchorage in the Gulf of Antalya — deck and ballast tank gauging on ships waiting for orders or berth, by launch when conditions allow
- Yacht yards and marinas along the coast — shell, tank and keel structure gauging on steel superyachts ahead of a refit or sale
- Repair quays and slipways — hull plating and piping checks on workboats, ferries and fishing vessels hauled out or alongside
Thickness measurement through the survey cycle at Antalya
How much steel has to be gauged depends on which survey the ship is due for, its type and its age. The pattern below is the usual one under IACS unified requirements; the attending surveyor and the class rules for the ship decide the final extent. For a ship calling at Antalya, we agree the programme with the class and the owner before the team mobilises.
| Survey | When it falls | What the thickness measurement usually covers |
|---|---|---|
| Annual survey | Every year, within three months of the anniversary date | General examination. Gauging where the surveyor finds suspect areas or where substantial corrosion was recorded at an earlier survey. |
| Intermediate survey | In place of the second or third annual survey | Suspect areas, and on older ships and ESP ships selected ballast and cargo spaces with close-up survey; the extent grows with age. |
| Renewal survey No. 1 | Around 5 years | The first full baseline: suspect areas and selected plating and stiffeners, usually with modest steel renewal. |
| Renewal survey No. 2 | Around 10 years | Wider gauging of deck, bottom and side plating, transverse sections across the cargo area on ESP ships, and more close-up survey. |
| Renewal survey No. 3 | Around 15 years | Extensive gauging of cargo and ballast tank structure and more transverse sections. The survey most likely to turn up steel renewal. |
| Renewal survey No. 4 and later | Around 20 and 25 years | Gauging extended to most structural members in cargo and ballast spaces. Charterers often add a Condition Assessment Programme. |
| Docking survey | Twice in each five-year period | Bottom and side shell, sea chests, rudder and stern area while the hull is dry; suspect bottom plating gauged. |
Port state control and Mediterranean emissions rules at Antalya
Turkey is covered by the Mediterranean MoU on port state control, and ship safety and ports are administered by the Ministry of Transport and Infrastructure through the harbour masters. The cargo ships calling at Antalya are mostly smaller general cargo vessels whose structural condition varies, and recurring findings include wasted hatch covers, corroded coamings and deteriorated deck fittings. Cruise ships and large yachts have their own regulatory regimes, but the underlying question of hull steel condition remains the same for owners.
Antalya lies inside the Mediterranean sulphur emission control area, so ships burning high-sulphur fuel must run an exhaust gas cleaning system there, and the wash-water and overboard piping of those systems is a known source of thinning and leaks. Ships that go on to EU ports also face EU ETS reporting and, for those in scope, FuelEU Maritime obligations, and a valid Inventory of Hazardous Materials is required for ships calling at EU ports under the Ship Recycling Regulation. Owners often use the gauging results to support docking and refit decisions.
Since 1 May 2025 the whole Mediterranean has been a sulphur emission control area, so ships calling at Antalya burn 0.10% sulphur fuel or run a scrubber. Scrubber wash-water piping, the overboard discharge and the hull penetration around it corrode quickly in service and are worth adding to the gauging scope at every docking.
Typical thickness gauging jobs in Antalya
Jobs at Antalya divide into commercial cargo work and yacht or workboat work. Coasters and small bulk carriers give hold and hatch access during discharge, steel yachts give long working windows in a yard or marina, and cruise tenders give a short set of defined checks. Owners are usually preparing for a survey, a refit, a charter delivery or a sale.
- Hold, hatch cover and coaming gauging on a small bulk carrier discharging minerals at the port, ahead of an intermediate survey.
- Ballast tank and deck gauging on a general cargo ship waiting at the gulf anchorage, with the readings organised by frame for the superintendent.
- Shell, tank and keel structure gauging on a steel motor yacht in a coastal yard before a refit, to confirm which plates need renewal.
- Hull checks on a cruise ship's tender at the cruise terminal, performed during a scheduled call and reported before the tender returned to service.
- Exhaust gas cleaning wash-water piping checks on a scrubber-fitted ferry alongside, to decide which pipe sections to renew at the next docking.
How a thickness measurement job runs at Antalya
The sequence for a thickness measurement job at Antalya is short and written down, so the yard, the surveyor and the superintendent know who arranges what.
Antalya has a major international airport with many direct connections, and the team normally flies in directly or connects through Istanbul, then travels by road to the port or the yard. The agent arranges gate passes, terminal safety briefings and launches for the anchorage, while yacht yards and marinas issue their own access, with crew lists and certificates sent ahead. A Turkish visa is needed for Indian passport holders, so we begin the application once a job is likely and keep the validity covering any delay.
- Send the vessel name or IMO number, ship type, class society, the survey due (annual, intermediate, renewal survey number, CAP or owner's condition survey), the port and dates, and the scope you expect.
- We confirm the scope against the class rules for that survey, prepare the thickness measurement plan with frame and section references, and say whether the measurement will be credited to a class survey.
- Mobilisation is planned around visa lead times and the vessel's schedule; the ship's agent arranges port access, and the yard or ship arranges staging, lighting, ventilation and gas-free certificates.
- Gauging with calibrated ultrasonic thickness gauges: through sound coatings only where the gauge's through-coating mode has been verified on a coated reference, otherwise on cleaned bare steel, with every reading tied to its frame, strake and location on the sketch.
- Readings are compared with original thicknesses as work proceeds; substantial and excessive corrosion and any cracks are reported to the attending surveyor and the superintendent the same day.
- The final report is issued on the class thickness-measurement formats with sketches, a summary of locations exceeding the allowable margins, piping tables where piping was in scope, and the gauge calibration and technician certificates.
Who does the work, and when class approval applies
We send the team from India to the ship for each job rather than keeping staff at the port, and plan the mobilisation around visas and the vessel's itinerary. The work is planned and supervised by the founder, our Responsible NDT Level III (ASNT NDT Level III in UT, RT, MT, PT and VT, with more than eleven years of international field experience). Technicians hold certification under the company's written practice to ASNT SNT-TC-1A; Atlantis is ISO 9001 and ISO 14001 certified.
Thickness measurement that a classification society credits to a class survey has to be carried out by a firm approved by that society under IACS UR Z17. Atlantis is in the process of obtaining UR Z17 approval from DNV, Lloyd's Register and ABS. Until a certificate is issued, the readings we take are for the owner's own decisions, not for credit to a class survey, so tell us the vessel's class and the survey due when you enquire and we set the scope for the right purpose. Owner's and charterer's condition gauging, pre-docking steel estimates, pre-purchase and on-hire or off-hire gauging, and scrubber and piping condition checks between surveys do not need class approval.
Governing codes and standards
- IACS UR Z7 hull classification surveys
- IACS UR Z10.1 to Z10.5 (oil tankers, bulk carriers, chemical tankers, double-hull and double-skin ships)
- IACS UR Z17 approval of service suppliers
- SOLAS chapter XI-1 regulation 2 and the 2011 ESP Code
- MARPOL Annex VI regulation 14 and the 2021 EGCS Guidelines (MEPC.340(77))
- The rules of the vessel's classification society
What you receive
- Thickness measurement report on the class formats, with sketches
- Summary of substantial and excessive corrosion against allowable margins
- Pitting and grooving records with depth and extent
- Piping wall-thickness tables with isometric sketches
- Magnetic particle or penetrant crack-detection reports
- Gauge calibration records and technician certificates
Industries served
- Coasters and small general cargo ships
- Small bulk carriers
- Cruise ships and their tenders
- Steel motor yachts and superyachts
- Passenger ferries and excursion craft
- Fishing vessels
- Tugs and workboats
- Small product tankers
Frequently asked questions
Can a steel yacht be gauged in a marina or yard at Antalya?
Yes, provided the yard or marina allows the work and the yacht can be accessed safely. On a slipway or hardstand we can measure shell plating, and tanks and keel structure when the owner empties and opens them. We agree a plate map and acceptance criteria with the owner or surveyor beforehand and mark any low readings.
Is there a drydock at Antalya for a renewal survey on a cargo ship?
No large ocean-going drydock operates here. Merchant ships that need a renewal survey generally go to the Marmara or to a yard elsewhere in the Mediterranean. Readings taken at Antalya during cargo work give the superintendent a measured steel scope before the ship sails for dock.
What can be gauged on a cruise ship during a port call?
Cruise calls are short and tightly programmed, so access is limited to what the ship's technical team releases. Tenders, service craft and certain defined spaces are possible targets. We agree the list in advance, work to the ship's safety rules and report each item as it is finished.
Does the Mediterranean ECA change what you gauge on scrubber-fitted ships?
It makes scrubber piping a priority. Ships burning high-sulphur fuel in the Mediterranean run their exhaust gas cleaning systems constantly, so wash-water and overboard lines are worth checking for thinning. We measure straight runs, bends and the pipe near the hull inlet and discharge, and report the results by line section.
Does thickness measurement at Antalya need class approval?
Thickness measurement that a classification society credits to a class survey has to be carried out by a firm approved by that society under IACS UR Z17. Atlantis is in the process of obtaining UR Z17 approval from DNV, Lloyd's Register and ABS. Until a certificate is issued, the readings we take are for the owner's own decisions, not for credit to a class survey, so tell us the vessel's class and the survey due when you enquire and we set the scope for the right purpose. Owner's and charterer's condition gauging, pre-docking steel estimates, pre-purchase and on-hire or off-hire gauging, and scrubber and piping condition checks between surveys do not need class approval.
Planning a survey or a drydock?
Send the vessel name or IMO number, the class, the survey due and the port. We reply with the scope, the mobilisation plan and a quote for that vessel.
Request a QuoteRequest a ship gauging quote
Send the vessel name or IMO number, the class society, the survey due and the port. We reply with the scope, the mobilisation plan and a quote for that vessel.
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