As-built conditions

As-built drawings are produced by the contractor and compared with the original design documents to identify any changes made during installation that could affect the laboratory's performance. Discrepancies between the original bid-set drawings and the installation must be corrected prior to laboratory start-up and occupancy. Problems can be as minor as an incorrectly marked pipe or as major as a motor supplied with the wrong voltage. Ideally, the "as-built" verification is performed several times during construction, so that conflicts between design and installation can be resolved with minimal effect on the project schedule. [Flaherty and Gracilieri, 1994]


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