
PDA Technical Glossary
PDA Technical Reports are highly valued membership benefits because they offer expert guidance and opinions on important scientific and regulatory topics and are used as essential references by industry and regulatory authorities around the world. These reports include terms which explain the material and enhance the reader’s understanding.
The database presented here includes the glossary terms from all current technical reports. The database is searchable by keyword, topic, or by technical report. Each definition provided includes a link to the source technical report within the PDA Technical Report Portal.
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Attribute Sampling
Inspection where either the unit of product is classified as conforming or non-conforming or the number of non-conformities in the unit of products is counted with respect to a given requirement of set of requirements. (TR43)
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Defect
(1) A departure of a quality characteristic from its intended level or state that occurs with a severity sufficient to cause an associated product or service not to satisfy its intended normal or foreseeable usage requirements. (TR51) (2) The nonfulfillment of intended usage requirements. The departure or absence of one or more quality characteristics from intended usage requirements. (TR43)
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Dimensional Product Quality
The product conforms to the required drawing dimensions. (TR43)(TR76)
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Incoming Inspection
A preventative program where parts or products are subjected to evaluation upon receipt.(TR43)
A program where, upon receipt, parts or products are subjected to measuring, examining, testing, or gauging one or more characteristics of a product or service, and comparing the results with specified requirements in order to establish whether conformity is achieved for each characteristic.(TR 76)
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Nonconformity (ANSI def.)
A departure of a quality characteristic from its intended level or state that occurs with severity sufficient to cause an associated product or service not to meet a specification requirement. [Synonym: Defect] (TR43)(TR76)
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Nonconformity Classifications
Critical: A Nonconformity that is likely to result in personal injury or potential hazard to the patient. This classification includes any nonconformity that compromises the integrity of the container, and risks microbiological contamination of a sterile product.
Major A: A Nonconformity leading to serious impairments, for example, a malfunction that makes the packaging unusable.
Major B: A Nonconformity leading to impairments of a lesser degree, for example, reduced efficiency in production.
Minor: A Nonconformity that does not impact product quality or process capability.
N/A: An imperfection classification that is less than the size, magnitude and impact of a nonconformity is considered not applicable. Therefore an imperfection that is considered to be non-applicable is acceptable.(TR43)
Critical: A nonconformity that risks personal injury or potential hazard to the patient. Any nonconformity that risks container closure in¬tegrity is assigned to this classification.
Major A: A nonconformity leading to serious container impairments, e.g., a malfunction making packaging unusable.
Major B: A nonconformity leading to contain¬er impairments of a lesser degree, e.g., reduced efficiency in production.
Minor: A nonconformity that does not impact product quality or process capability.
N/A: Imperfections that are considered to be nonapplicable or nondefects and are therefore acceptable.(TR 76)
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Operating Characteristic Curves
The operating characteristic curve shows the probability of acceptance (Pa) for any level of lot quality. (TR43)
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Sampling Plan
This indicates the number of units of product from each lot or batch which are to be inspected (sample size or series of sample sizes) and the criteria for determining the acceptability of the lot or batch (acceptance and rejection numbers). (TR43)
The number of units of product from each lot or batch that need to be inspected (sample size or series of sample sizes) and the criteria for determining the acceptability of the lot or batch (acceptance and rejection numbers). (TR 76)