Descriptors | Printed-circuit boards, Printed circuits, Double, Single, Side, Electronic equipment and components, Quality control, Approval testing, Capability approval, Specification (approval), Inspection, Performance, Statistical quality control, Sampling methods, Acceptance inspection, Defects, Thickness, Metal coatings, Dimensions, Flexible materials, Finishes, Patterns, Layout, Assessed quality, Quality assurance systems, Printed-circuit bases, Test specimens, Testing conditions |