GB/T 46140-2025
ActiveChemicals—Water-sediment myriophyllum spicatum toxicity test
化学品 水-沉积物系统中穗状狐尾藻毒性试验
Application Summary AI generated
This standard specifies a laboratory test method for evaluating the toxicity of chemicals to the aquatic macrophyte Myriophyllum spicatum in a water-sediment system. It is applied in environmental risk assessment for chemical registration and regulation, particularly for pesticides, industrial chemicals, and biocides that may enter surface waters. The test measures effects on plant growth endpoints, such as shoot length and biomass, to determine safe concentration levels for aquatic ecosystems.
Related Standards
GB/T 27849-2011
Chemicals--Degradation screening test--Chemical oxygen demand
GB/T 27845-2011
Chemicals—Test method for particle-size analysis of soils
GB/T 27850-2011
Chemicals - Ready biodegradability - General considerations
GB/T 27852-2011
Chemicals--Biodegradation screening test--Biochemical oxygen demand
GB/T 27846-2011
Chemicals--Measurement of viscosity using the H6ppler falling-ball viscometer
GB/T 27851-2011
Chemicals—Terrestrial plant test—Vegetative vigour test
GB/T 27857-2011
Chemicals -- Anaerobic biodegradability of organic compounds in digested sludge -- By measurement of gas production
GB/T 27860-2011
Chemicals—Estimation of the adsorption coefficient (Koc) on soil and on sewage sludge using high performance liquid chromatography (HPLC)
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.