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Marine Testing Services


EGCS and VGP Requlations; Cevre Laboratories Group offers sampling and testing in accordance with IMO Environmental Regulations Compliance (US-EPA VGP Compliance) requirements at several ports around the world to meet the needs of our customers. 

Ballast Water Testing
Scrubber Wash Water Testing
Bilge Water Testing
Gray Water Testing
Drinking&Potable Water Testing
BWTS D2 Commissioning Testing
Lubricant Testing


Ballast Water Testing : 

Ballast water is used during vessel navigation to provide the extra weight needed for balance and stabilisation. Environmental issues such as interoceanic organism transfers might arise due to the transfer of ballast water. Therefore, ballast water analysis is vital to environmental sustainability and maritime safety.

These analyses are carried out in order to assess the environmental impact of ballast water changes during vessel navigation, measure the water quality and prevent the transfer of potentially harmful organisms. The analyses can also be carried out within various maritime regulations and environmental protection measures.

Our laboratory carries out all significant tests required for UV, electrolysis and ozone-type systems used in ballast water disinfection according to TS EN ISO / IEC 17025 standard.


Escherichia coli  

Fecal Enterococcus Count

Vibrio cholerae

Total Coliform Bacteria Count

Heterotrophic Bacteria Count


Haloacetic Acids

Total Chlorine


Chlorine Dioxide





Scrubber Wash Water Testing : 

Wastewaters containing sulphur dioxide and other contaminants occur during exhaust gas washing in vessels. These wastewaters are called scrubber water. The analysis of the scrubber water from the exhaust gas treatment systems in vessels means the determination of various chemical substances and contaminants in these waters.

Scrubber water analyses are carried out in order to assess the compliance of the occurred wastewater with specific standards, its safe disposal, or to determine the appropriate treatment processes.

Our laboratory carries out scrubber water analyses according to TS EN ISO / IEC 17025 standard within the scope of 2013 Vessel General Permit (VGP) requirements.






Poly Aromatic Hydrocarbons (PAH)


Total and Dissolute Metals (Cadmium, Zinc, Copper, Arsenic, Nickel, Chrome, Selenium, Vanadium, Lead, Thallium)


Bilge Water Testing : 

Bilge water is the wastewater accumulated generally in the bilge system of ships or other sea vessels. The accumulated water, oil and oil residues, fuel particles, various chemicals or cleaning substances may potentially contain substances that may be harmful to the equipment used and the environment, depending on the activities of the vessel.

Bilge water is accumulated up to a certain capacity. It should then be processed, filtered, and discharged in a way that would not harm the environment and sea ecosystems. National and international procedures and environmental regulations are in place on this issue. Therefore, it is essential to monitor, analyse and process the bilge water regularly.

Our laboratory carries out bilge water analysis according to TS EN ISO / IEC 17025 standard within the scope of 2013 Vessel General Permit (VGP) requirements.


Oil and Grease


Gray Water Testing

Grey water generally means water that is at a quality between dirty and clean water. These wastewaters are typically used waters originating from certain living spaces such as sinks, showers, dishwashers, washing machines and galleys, which contain mild contaminants. This type of wastewater must be discharged appropriately with minimum environmental impact.

Our laboratory carries out greywater analyses according to TS EN ISO / IEC 17025 standard within the scope of 2013 Vessel General Permit (VGP) requirements.


Suspended Solids

Escherichia coli



Total Chlorine

Drinking&Potable Water Testing :

Drinking-potable water means clean, healthy and safe water used for drinking, personal hygiene, domestic use and other daily needs of the crew and passengers on vessels. This type of water does not contain microorganisms, chemicals or other harmful substances that might harm human health, and they follow particular hygiene and quality standards.

Our laboratory provides analysis services according to TS EN ISO / IEC 17025 standard, WHO Guide to Ship Sanitation, which is the primary guide for drinking-potable water in the maritime industry, as well as the EPA guidelines, European Union Genera Drinking Water Criteria and Local Water Quality Criteria.

Conductivity (20ºC) 
Escherichia coli 
Total Colony Count (22ºC) 
Total Colony Count (37ºC) 
Colour (Pt-Co) 
Legionella Count
Total Hardness 
Free Chlorine 
Total Chlorine
Chlorine Dioxide

BWTS D2 Commissioning Testing :

Commissioning tests for ballast water are carried out to determine whether the system works accurately after the design and installation steps of the ballast systems in ships or sea vessels. Another goal of commissioning testing is to show that the system is in accordance with the requirements of the Ballast Water Management Contract (BWMC) of the International Maritime Organisation (IMO).

Our laboratory performs commissioning tests for Ballast Water Systems according to TS EN ISO / IEC 17025 standard.

Microorganism Category

Performance Standards

Plankton Size > 50 µma

< 10 viable cells / m3

Plankton Size 10 - 50 µma

< 10 viable cells / mL

Toxicogenic Vibrio Cholerae

< 1 cfub / 100 mL

Escherichia coli

< 250 cfub / 100 mL

Intestinal Enterococci

< 100 cfub / 100 mL


Lubricant Testing :

Lubricant analyses are the analysis processes carried out in order to assess the quality and state of the lubricants used in engine systems, machinery and other equipment of the vessel. These tests must be carried out within specific periods in order to ensure that this equipment works without problems and its performance is improved through periodic maintenance.

Our laboratory carries out lubricant analyses with reference to ISO and ASTM standards required as per the Used Engine Oil Analysis User Interpretation Guide published by The International Council on Combustion Engines. Reports are provided by comparing the performance assessment of the lubricant with past results and reference values.


Kinematical Viscosity (100°C)

Kinematical Viscosity (40°C)


Flash Point

Water Content

Total Acid Number (TAN)

Total Base Number (TBN)

Viscosity Index

Wear Metals, Lubricant Additive Elements and Contaminant Elements (Boron, Calcium, Zinc, Tin, Titanium, Aluminium, Barium, Phosphor, Chrome, Iron, Silver, Nickel, Potassium, Sodium, Copper, Lead, Molybdenum, Magnesium, Silicone, Vanadium)