Baseline Acceptable Quality Limit Qualification Matrix Setup
A clear AQL matrix binds defect classification to statistical sampling tables, shifting commercial re-inspection costs to factories on lot failures.
General Inspection Level II
Meaning
Primary sampling standards define the default intensity for most quality control inspections in the manufacturing sector. General inspection level ii is the most common choice for consumer goods because it balances the need for statistical accuracy with the time and cost of the check. It provides a higher level of protection for the buyer than Level I while requiring fewer samples than Level III.
This level is the starting point for most new supplier relationships until a history of quality is established.
Operational Frequency
Regular use of this standard allows for a consistent comparison of quality over different production cycles. Because general inspection level ii is the industry norm, most third-party inspection companies in China use it as their baseline for pricing and scheduling. It allows for a sample size that is large enough to detect major trends without overwhelming the warehouse staff.
This consistency helps in maintaining a stable supply chain.
Sampling Sensitivity
Discriminating between a good lot and a bad lot requires a sample that is representative of the whole population. By choosing general inspection level ii, a company ensures that the probability of accepting a sub-standard batch is kept within reasonable limits. The sensitivity of the test is adjusted based on the total number of units in the shipment.
Inspection Depth
Technicians spend a moderate amount of time on each batch to ensure all functional and visual requirements are met. The use of general inspection level ii dictates a specific workload that fits into a standard workday for an auditor. If the results are consistently good, the buyer might eventually move to a reduced inspection schedule.