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DNVGL-CP-0139

Protective coating systems for cargo oil tanks - Non-metallic materials

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Organization: DNVGL
Publication Date: 1 December 2015
Status: active
Page Count: 16
scope:

This CP gives a description of the procedures and requirements related to documentation, design and type testing applicable for TA of protective coating systems for cargo oil tanks.

This CP does not set the design requirements to the protective coating systems - cargo oil tanks. TA is based on compliance with design requirements given in the Society's Rules and/or other regulations and standards. The CP describes how to document compliance with the requirements in order to obtain a TA certificate for the equipment. This includes, where relevant, technical requirements for how the type tests shall be performed.

The Society's type approval certificate will cover one grade of the actual product with the possibility to include variants.

For the coating system, this means:

grade: full coating system, including one or more coats (as per system definition)

variants: colour variants and similar

The Society's type approval certificate is normally limited to one manufacturer at one production site.

The approval is solely connected to the corrosion prevention properties of the coating system. The approval does not include any evaluation of toxicity, contamination, pollution, or fire technical properties.

Type tests as specified in Sec.2 [3], shall be carried out and verified in one of the following ways:

at a Society laboratory

at a recognized and independent laboratory or a laboratory accepted by the Society

at the manufacturer's premises in the presence of a Society's surveyor.

As the approval of service supplier, see CP 0277, may be granted to laboratories either independent of the coating manufacturer or to the coating manufacturer's own laboratory there will be a different follow-up from the surveyor during the testing period.

When actual testing, forming basis for test reports used to seek type approval from the Society, is carried out at the coating manufacturer's own laboratory the responsible surveyor shall be called in for witnessing milestones, typically:

witnessing of selection of paint material from stock if applicable

witnessing of sample surface preparation

witnessing of primer application & weathering

examination of surface and preparation prior to application of top coat

witnessing of top coat application

witnessing during testing

witnessing evaluation of test.

Please refer to App.A for flow charts showing the involvement of the Society (e.g. Society's surveyor).

 

 

 

 

Document History

DNVGL-CP-0139
December 1, 2015
Protective coating systems for cargo oil tanks - Non-metallic materials
This CP gives a description of the procedures and requirements related to documentation, design and type testing applicable for TA of protective coating systems for cargo oil tanks. This CP does not...

References

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