2 Definitions
Clasification Society 2024 - Version 9.40
Statutory Documents - IMO Publications and Documents - Circulars - Maritime Safety Committee - MSC.1/Circular.1198 – Application of SOLAS Regulation XII/6.3 on Corrosion Prevention of Dedicated Seawater Ballast Tanks and Application of the Performance Standard for Protective Coatings for Dedicated Seawater Ballast Tanks – (2 June 2006) - Annex 2 - Draft Performance Standard for Protective Coatings for Dedicated Seawater Ballast Tanks in all Types of Ships and Double-side Skin Spaces of Bulk Carriers - 2 Definitions

2 Definitions

 For the purpose of this Standard, the following definitions apply:

  2.1 Ballast tanks are those as defined in resolutions A.798(19) and A.744(18).

  2.2 Dew point is the temperature at which air is saturated with moisture.

  2.3 DFT is dry film thickness.

  2.4 Dust is loose particle matter present on a surface prepared for painting, arising from blast-cleaning or other surface preparation processes, or resulting from the action of the environment.

  2.5 Edge grinding is the treatment of edge before secondary surface preparation.

  2.6 “GOOD” condition is the condition with minor spot rusting as defined in resolution A.744(18).

  2.7 Hard coating is a coating that chemically converts during its curing process or a non-convertible air drying coating which may be used for maintenance purposes. Can be either inorganic or organic.

  2.8 NDFT is the nominal dry film thickness. 90/10 practice means that 90% of all thickness measurements shall be greater than or equal to NDFT and none of the remaining 10% measurements shall be below 0.9 x NDFT.

  2.9 Primer coat is the first coat of the coating system applied in the shipyard after shop primer application.

  2.10 Shop-primer is the prefabrication primer coating applied to steel plates, often in automatic plants (and before the first coat of a coating system).

  2.11 Stripe coating is painting of edges, welds, hard to reach areas, etc., to ensure good paint adhesion and proper paint thickness in critical areas.

  2.12 Target useful life is the target value, in years, of the durability for which the coating system is designed.

  2.13 Technical Data Sheet is paint manufacturers’ Product Data Sheet which contains detailed technical instruction and information relevant to the coating and its application.

Parent topic: Annex 2 - Draft Performance Standard for Protective Coatings for Dedicated Seawater Ballast Tanks in all Types of Ships and Double-side Skin Spaces of Bulk Carriers
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