Interpretation
Clasification Society 2024 - Version 9.40
Statutory Documents - IMO Publications and Documents - Circulars - Maritime Safety Committee - MSC.1/Circular.1378 – Unified Interpretations of the Performance Standard for Protective Coatings for Dedicated Seawater Ballast Tanks in all Types of Ships and Double-Side Skin Spaces of Bulk Carriers (Resolution MSC.215(82)) – (8 December 2010) - Annex – Unified Interpretations of the Performance Standard for Protective Coatings for Dedicated Seawater Ballast Tanks in all Types of Ships and Double-Side Skin Spaces of Bulk Carriers (Resolution MSC.215(82)) - PSPC 4 – Table 1: 3 SSP (Secondary Surface Preparation) - Interpretation

Interpretation

 Usually, the fillet welding on tank boundary watertight bulkhead is left without coating on block stage (because not yet be leakage tested), in which case it can be categorized as erection joint ("butt") to be power tooled to St 3.

  “3.6 Water soluble salts limit equivalent to NaCI after blasting/grinding8

  ≤ 50 mg/m2 of sodium chloride."

Parent topic: PSPC 4 – Table 1: 3 SSP (Secondary Surface Preparation)
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