0 INTRODUCTION1 PURPOSE2 SCOPE 2.1 Application 2.2 Inspection 2.3 Inspection by Attributes 2.4 Unit of Product3 DEFINITIONS AND TERMINOLOGY 3.1 Defect 3.2 Nonconformity 3.3 Acceptable Quality Level (AQL) 3.4 Limiting Quality (LQ) 3.5 Isolated Lot 3.6 Mixed Lot4 EXPRESSION OF CONFORMANCE 4.1 Percent Nonconforming and Nonconformities per Hundred Unity 4.2 Percent Nonconforming 4.3 Nonconformities per Hundred Units5 LIMITING QUALITY (LQ), USE OF PLANS 5.1 Use 5.2 Note on the Meaning of LQ 5.3 Limitation 5.4 Specifying LQs 5.5 Nominal Limiting Quality Levels6 SUBMISSION OF PRODUCT 6.1 Lot or Batch 6.2 Formation of Lots or Batches 6.2.1 Formation of Type B Lots or Batches 6.2.2 Formation of Type A Lots or Batches 6.3 Lot or Batch Size 6.4 Presentation of Lots or Batches7 ACCEPTANCE AND NONACCEPTANCE 7.1 Acceptability of lots or Batches 7.2 Nonconforming Units 7.3 Special Reservation for Designated Nonconformities 7.4 Resubmitted Lots or Batches8 DRAWING OF SAMPLES 8.1 Sample 8.2 Sampling 8.3 Time of Sampling 8.4 Double or Multiple Sampling9 NORMAL INSPECTION 9.1 Normal Inspection10 SAMPLING PLANS 10.1 Sampling Plan 10.2 Inspection Level 10.3 Code Letters 10.4 Obtaining the Sampling Plan 10.5 Types of Sampling Plans11 DETERMINATION OF ACCEPTABILITY 11.1 Percent Nonconforming Inspection 11.1.1 Single Sampling Plan 11.1.2 Double Sampling Plan 11.1.3 Multiple Sampling Plan 11.2 Nonconformities per Hundred Units Inspection 11.3 Zero Acceptance Numbers 11.4 Preferred LQs 11.5 Nonstandard LQs12 SUPPLEMENTARY INFORMATION 12.1 Operating Characteristic Curves 12.2 Process Average13 TABLES (DESCRIPTION, APPLICATION, USE) 13.1 Table A1 13.2 Table A2 13.3 Tables B1-B10 13.4 Table C1 13.5 Tables C2 and C3 13.6 Table C4TABLESA1 Single Sampling Plans Indexed by Nominal Limiting Quality (LQ) for Isolated Lots from Mixed and Uncontrolled Process SourcesA2 Summary of Properties of LQ Plans Listed in Table A1B1-B10 Single Sampling Plans Indexed by LQ for Isolated Lots from a Controlled ProcessB1 Single Sampling Plans for Nominal Limiting Quality 0.5%B2 Single Sampling Plans for Nominal Limiting Quality 0.8%B3 Single Sampling Plans for Nominal Limiting Quality 1.25%B4 Single Sampling Plans for Nominal Limiting Quality 2.0%B5 Single Sampling Plans for Nominal Limiting Quality 3.15%B6 Single Sampling Plans for Nominal Limiting Quality 5.0%B7 Single Sampling Plans for Nominal Limiting Quality 8.0%B8 Single Sampling Plans for Nominal Limiting Quality 12.5%B9 Single Sampling Plans for Nominal Limiting Quality 20.0%B10 Single Sampling Plans for Nominal Limiting Quality 32.0%C1 Relation Between Nominal Limiting Quality (LQ) and LQ 10, LQ 5C2 Equivalent Sample Sizes for Single, Double, and Multiple PlansC3 Equivalent Acceptance Numbers for Single, Double, and Multiple PlansC4 Probability of Zero Nonconforming Items in a Lot