The sample is assumed to represent a lot. Nevertheless, procedures for securing a representative sample may not be well understood by the operators who are responsible for obtaining the samples so we do acceptance sampling to determine whether various lots of material may be safely ┐passed┐.
╗ When received at the plant.
╗ When transferred in a partially processed state from one process to another.
╗ Operating Standards ┐ Are framed to produce the product with minimum variation. All process parameters have been tabulated at each process level and are stringently monitored for deviations.
╗ When ready for shipment into the market.