Glossary P

The Environmental Glossary. Letter P +++ Popular Articles: 'Peak power', 'Parallel connection', 'Pollution'

A probability sample is a sample chosen in such a manner that the probabilities of including the selected units in the sample are known, and all population units have a positive probability of selection.

A Probability-Based Sampling is a method of specimen collection such that the relative probability of a significant constituent is being included in the specimen is mathematically predicable.

A probationary Core indicator (Deleted term 1992. See indicator

Deutsch: Prozess / Español: Proceso / Français: Processus / Italiano: Processo
A Process is a set of interrelated or interacting activities which transforms inputs into outputs.

Producer is the organism that uses solar energy (green plants) or chemical energy (some bacteria) to manufacture the organic compounds it needs as nutrients from simple inorganic compounds obtained from its environment.

Deutsch: Produkt / Español: Producto / Português: Produto / Français: Produit / Italiano: Prodotto

In this glossary products are mostly items made from raw or recycled materials; people buy and use these items everyday.

Deutsch: Produktion / Español: Producción / Português: Produção / Français: Production / Italiano: Produzione /

In the environmental context, "production" refers to the process of manufacturing or creating goods, resources, or energy. Production has significant environmental impacts, including resource depletion, pollution, and greenhouse gas emissions.

A Professional Market is Sales of pesticides for application to industrial/commercial/governmental sectors, homes and gardens by certified/commercial applicators.

A Proficiency Test (PT) is a type of external assessment in which a stable sample, the composition of which is unknown to the analyst, is provided to determine whether the analyst/laboratory can produce analytical results within the specified acceptance criteria. Also known as a Performance Evaluation Test.

A Proficiency Test Sample is a test specimen that mimics an actual specimen in all possible aspects, except that its composition is unknown to the laboratory at the time of analysis, which is used to assess the laboratory"s capability to produce results within acceptable criteria.

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