Random Stratified Sampling
In the context of Civil Pro this relates to a method of determining test locations in a random fashion, while still ensuring coverage of the area to be tested. For example, if 5 tests are to be taken over an area 10m x 100m, random stratified sampling will result in there being a single test in every 2m (10m/5m) section laterally and every 20m (100m/5m) longitudinally.
A Lot is simply a specific, discrete section of the physical work or a process which forms part of the works being constructed.
A Conformed Lot is a Lot for which all testing has been performed and results received demonstrating compliance, all Checklists are completed and any NCRs are closed out.
A Guaranteed Lot is completed and complies with the Specification but is waiting on some results of testing (such as 28 day concrete tests) or other information.
A Lot which is neither Conformed or Guaranteed
Where a product or service exhibits characteristics that do not conform to Specifications required and/or stated. This may include failures, deficiencies, defects, malfunctions and the like.