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Anti-fouling Systems—Sampling Anti-fouling Systems—Sampling

Huang TianbingHuang Tianbing

Marine Biosafety SectionMarine Biosafety Section

Bangkok, June 2009Bangkok, June 2009

Views expressed in this presentation are those of the author and should not Views expressed in this presentation are those of the author and should not be construed as necessarily reflecting the views of IMO or its Secretariatbe construed as necessarily reflecting the views of IMO or its Secretariat.

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ARTICLE 11 - Inspections and detections of ARTICLE 11 - Inspections and detections of violationsviolations

A brief sampling of the ship’s anti-A brief sampling of the ship’s anti-fouling system that does not affect the fouling system that does not affect the integrity, structure, or operation of the integrity, structure, or operation of the anti-fouling system taking into account anti-fouling system taking into account guidelines developed by the guidelines developed by the OrganizationOrganization . .

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ARTICLE 11 (continue)ARTICLE 11 (continue)

The time required to process the result The time required to process the result of such sampling shall not be used as a of such sampling shall not be used as a basis for preventing the movement and basis for preventing the movement and departure of the ship departure of the ship

AFS-Sampling AFS-Sampling AFS-Sampling AFS-Sampling

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Guidelines for brief sampling of anti-fouling Guidelines for brief sampling of anti-fouling systems on ships, adopted by resolution systems on ships, adopted by resolution MEPC.104(49).MEPC.104(49).

-- Main body provides general terms; Main body provides general terms;

-- Appendices provide examples of Appendices provide examples of sampling and analytic methodssampling and analytic methods

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11 When sampling is neededWhen sampling is needed

22 General terms to be observed during sampling General terms to be observed during sampling

33 A brief introduction of sample analysisA brief introduction of sample analysis

(two steps, thresholds and tolerance limit )(two steps, thresholds and tolerance limit )

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Inspections or surveys do not necessarily always need Inspections or surveys do not necessarily always need to include sampling of anti‑fouling systemto include sampling of anti‑fouling system (paragraph (paragraph 1.3 of the Guidelines).1.3 of the Guidelines).

Reliable documentation (AFS Certificate or SOC) Reliable documentation (AFS Certificate or SOC) would sufficiently verify a ship’s compliance would sufficiently verify a ship’s compliance

Majority of relevant industries have been Majority of relevant industries have been refraining refraining from the marketing, sale and from the marketing, sale and application of application of organotin compoundsorganotin compounds since the adoption of the since the adoption of the Convention Convention

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For practical reasons sampling of the anti-For practical reasons sampling of the anti-fouling system is very often reserved for fouling system is very often reserved for occasional checking or where there are clear occasional checking or where there are clear grounds for believing that the anti-fouling grounds for believing that the anti-fouling system intended to apply or presenting on the system intended to apply or presenting on the hull does not in compliance with the hull does not in compliance with the Convention. Convention.

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Sampling may be needed in the following cases:Sampling may be needed in the following cases:

..11 occasional checking of an anti-fouling occasional checking of an anti-fouling system applied at new-building ;system applied at new-building ;

.2.2 occasional checking of an anti-fouling occasional checking of an anti-fouling applied at a maintenance and repair applied at a maintenance and repair

dry‑docking;dry‑docking;

.3.3 an existing ship requesting an IAFS for the an existing ship requesting an IAFS for the first time; first time;

.4.4 port State inspectionport State inspection

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Sampling from wet paintSampling from wet paint

11 Take samples from a newly opened container; Take samples from a newly opened container; 22 Stir the paint to ensure even consistency before Stir the paint to ensure even consistency before

sampling;sampling;33 Take the samples and store them in appropriate sealed Take the samples and store them in appropriate sealed

packaging;packaging;44 For coatings where on-site mixing of several For coatings where on-site mixing of several

components is required, take samples of each components is required, take samples of each component, and record the required mixing ratio; component, and record the required mixing ratio;

55 Record details of the paints;Record details of the paints;66 Triplicate specimens Triplicate specimens

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Sampling from dry paint Sampling from dry paint from ship’s hullfrom ship’s hull

11 Not to affect the Not to affect the integrity of anti-fouling integrity of anti-fouling systems; systems;

22 From the surface is From the surface is intact, clean and free of intact, clean and free of fouling fouling

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33 Avoid contaminationAvoid contamination

of samples of samples

44 Triplicate samples atTriplicate samples at

least 4 sampling pointsleast 4 sampling points

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55 Take photographs of hull and sample Take photographs of hull and sample areas areas

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Sampling device Sampling device

disk

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spring coils

gears

motor unit

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0m

m

150mm

batterydiscs (abrasive paper on top)

Figure 1. Schematic diagram of sampling device

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Personal safety Personal safety

11 Safe access to Safe access to sampling points sampling points

22 Avoid contact with Avoid contact with paint paint

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Safe access to sampling points Safe access to sampling points

− − Condition of the ship (ballast condition, ship’s Condition of the ship (ballast condition, ship’s operations, mooring, anchorage, operations, mooring, anchorage, etc...)etc...)

− − Surroundings (position of ship, traffic, ships Surroundings (position of ship, traffic, ships movement, quay operations, barges or other movement, quay operations, barges or other

floating vessels alongside)floating vessels alongside) − − Safety measures for the use of access equipment Safety measures for the use of access equipment

(platforms,cherry picker, ladders, etc...) (platforms,cherry picker, ladders, etc...) −− Weather (sea state, wind, rain, temperature, etc...)Weather (sea state, wind, rain, temperature, etc...)− − Precautions to avoid falling into the water Precautions to avoid falling into the water

between the quay and the ship. between the quay and the ship.

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Sample analysisSample analysis

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ICP /MS: ICP /MS: Inductively Coupled Plasma/ Mass Inductively Coupled Plasma/ Mass Spectrometry Spectrometry

ICP-OES:ICP-OES: Inductively Coupled Plasma /Optical Inductively Coupled Plasma /Optical Emission Spectrometer Emission Spectrometer

AAS: AAS: Atomic Absorption Spectrophotometer Atomic Absorption Spectrophotometer

XFR: X-ray fluorescence analysisXFR: X-ray fluorescence analysis

GC/MS: Gas Chromatography/mass GC/MS: Gas Chromatography/mass spectrophotometry spectrophotometry

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Atomic absorption spectroscopy Atomic absorption spectroscopy

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Inductively Coupled Plasma Inductively Coupled Plasma

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X-ray fluorescence (XRF) X-ray fluorescence (XRF)

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GC-MSGC-MS

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Field-Portable GC/MS Field-Portable GC/MS

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““Tolerance range” means the numerical range added to Tolerance range” means the numerical range added to the threshold value indicating the range where detected the threshold value indicating the range where detected concentrations above the threshold value are concentrations above the threshold value are acceptable due to recognised analytical inaccuracy and acceptable due to recognised analytical inaccuracy and thus do not compromise the assumption of thus do not compromise the assumption of compliance.compliance.

Less than 30% tolerance range. Less than 30% tolerance range.

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