(2) All hydrostatic tests on piping and equipment, including steam tracing systems, shall be carried out before insulating material is applied. The Insulation Applicator shall only insulate those sections of the Permanent works that have been specifically released by an authorised agent. If however, it has been planned and decided to insulate prior to other trades work and before tests have been completed, insulation shall terminate a suitable distance before and after welded and flanged joints, and sealed against water ingress and also protected from mechanical damage which may be caused by other trades and during subsequent testing.(3) Surfaces to be insulated shall be clean, dry and free from loose rust scale. It shall be the Insulation Applicator's responsibility to remove the loosely adhering scale and dirt by an appropriate method which does not scar, scour or damage the metal surface.(4) Insulated carbon, low alloy and stainless steel piping and equipment require protective coatings as specified in the Specification for Painting (S-000-13A0-0001V).(5) Where coatings are applied, repairs if necessary shall be carried out by the appointed Painting Contractor and the coatings shall be the subject of inspection by an authorised agent prior to the commencement of insulation application.
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