Water quality — Sampling — Part 20: Guidance on the use of sampling data for decision making — Compliance with thresholds and classification systems
NORMA vydána dne 7.3.2008
Označení normy: ISO 5667-20:2008
Datum vydání normy: 7.3.2008
Počet stran: 34
Přibližná hmotnost: 102 g (0.22 liber)
Země: Mezinárodní technická norma
Kategorie: Technické normy ISO
Description / Abstract: ISO 5667-20:2008 establishes principles, basic requirements, and illustrative methods for dealing with the use of sample data for decision making based on the assessment of the confidence that water quality: meets targets and complies with thresholds; has changed; and/or lies in a particular grade in a classification system. ISO 5667-20:2008 also specifies methods for preliminary examination of the sensitivity of decisions to error and uncertainty, although it does not cover the full range of statistical techniques. ISO 5667-20:2008 provides general advice on decision making related to constraint formulation for expression of thresholds and targets and the form and scale of sampling programmes.