GB/T 21817-2008
ActiveTesting of chemicals - Inherent biodegradability - Modified SCAS test
化学品 固有生物降解性 改进的半连续活性污泥试验
Application Summary AI generated
This standard specifies a laboratory test method to assess the inherent biodegradability of chemical substances under aerobic conditions using a modified semi-continuous activated sludge (SCAS) system. It is applied in environmental risk assessment and regulatory compliance for industrial chemicals, detergents, and pharmaceuticals to determine if a substance can be partially degraded by microorganisms in wastewater treatment plants. The test is particularly relevant for evaluating persistent organic pollutants and guiding waste management decisions.
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Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.