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9 — Identification of areas and sections for thickness measurements Keuringsregeling scheepvaart (CAS) bij het Protocol van 1978 bij het Internationaal Verdrag ter voorkoming van verontreiniging door schepen, 1973 (Keuringsregeling scheepvaart (CAS))

Identification of areas and sections for thickness measurements

The CAS requirements

Paragraph 7.3.3 (and Table 7.3.3) of the CAS specify the minimum requirements for thickness measurements for CAS survey. These are as follows:

Thickness measurement requirements

1. Within the cargo area: .1 Each deck plate .2 Three transverse sections .3 Each bottom plate

2. Measurements of structural members subject to close-up survey according to the table above (for close up survey), for general assessment and recording of corrosion pattern

3. Suspect areas

4. Selected wind and water strakes outside the cargo area

5. All wind and water strakes within the cargo area

6. Internal structure in the fore and aft peak tanks

7. All exposed main deck plates outside the cargo area and all exposed first tier superstructure deck plates

Guidance Notes:

1 The attending surveyor(s) may increase the extent of thickness measurements as deemed necessary (see paragraph 7.3.5 of the CAS).

2 Transverse sections for thickness measurements shall be chosen where the largest material reductions are expected to `occur or are revealed from deck plating measurements (see section 7.3.8 of the CAS).

3 Where substantial corrosion is found, the extent of thickness measurements shall be increased accordingly (see paragraph 7.3.4 of the CAS).

In addition paragraphs 7.3.4 to 7.3.8 of the CAS provide further guidance on the extent and increase of the thickness measurements to be taken.

The Plan

This section of the Plan shall identify and list, using paragraph 7.3.3 (and Table 7.3.3) of the CAS, the areas and sections where thickness measurements shall be taken.

Regeling
Keuringsregeling scheepvaart (CAS) bij het Protocol van 1978 bij het Internationaal Verdrag ter voorkoming van verontreiniging door schepen, 1973 (Keuringsregeling scheepvaart (CAS))
Afkortingen
CAS
Soort
Verdrag
Geldend vanaf
01-10-2014
BWB-id
BWBV0006313
Versie
2014-10-01_0

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