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Critical defective
A critical defective contains one or more critical and may also contain major and/or minor
defects.
Major defective
A major defective contains one or more defects and may also contain minor defects but
contains no critical defect.
Minor defective
A minor defective contains one or more minor defects but contains no critical and major
defects.
3.2.7
EXPRESSION OF DEFECTIVES
Number of defects
Percent of defects = ------------------------------------------ X 100%
Number of products inspected
3.2.8
INSPECTION STANDARD
Unless otherwise specified, the inspection standard will be defined by MIL- STD-105E
(ISO-2859), SINGLE SAMPLING PLAN. Level II is in use all the time, inspection levels are
normal, reduce and tighten.
Acceptance Quality Level
When a critical defect is found, this must be reported immediately upon detection, the lot
or batch shall be rejected and further shipments shall be held up pending instructions
from the responsible person in relevant organization.
Major Defective: 0.4 AQL
Minor Defective: 1.50 AQL
3.2.9
GENERAL RULES
The inspection must be carried out by trained inspectors having good knowledge of the
meaning of "fitness for use". The inspection must be based upon the documents concerning
the completely assembled and packed product when more defects appear with the same
cause only the most serious defect must be taken into account. Defects found in accessories
packed with the product as connecting cables, plugs, adapters and the like, and being
inspected as a part of the complete product, must be included in the evaluation.
The evaluation must be within the limits of the product specification and, for not specified
characteristics, be related to the design model, limit samples or judgment of a jury of experts.
Faults must be demonstrable.