a) RELEASE OF FOUNDATION OR SUPPORT STRUCTURE
i. Concrete foundation type
Before start of erection, equipment foundation shall be surveyed to ensure their correct locations, elevation, nos. of anchor bolts & nuts, anchor bolt size, anchor bolt orientation &elevation, concrete curing time and check any damage of anchor thread.
ii. Support structure type
Before start of erection, support structure shall be surveyed to ensure their correct locations, elevation, nos. of bolt holes, size of bolt hole, bolt hole orientation, shim plate & hold down bolts/ nuts as specify by structure drawing and check any damage of support struct ure painting.