Registration Dossier
Registration Dossier
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EC number: 411-700-4 | CAS number: 140921-24-0 HÄRTER VERSUCHSPRODUKT LS 2959E; HÄRTER VP LS 2959E
Biodegradation in water and sediment: simulation tests
Administrative data
Link to relevant study record(s)
- Endpoint:
- biodegradation in water: sediment simulation testing
- Data waiving:
- exposure considerations
- Justification for data waiving:
- the study does not need to be conducted because direct and indirect exposure of sediment is unlikely
- Transformation products:
- not measured
- Endpoint:
- biodegradation in water: simulation testing on ultimate degradation in surface water
- Data waiving:
- study scientifically not necessary / other information available
- Justification for data waiving:
- other:
- Transformation products:
- not measured
Referenceopen allclose all
Description of key information
Not applicable.
Key value for chemical safety assessment
Additional information
Biodegradation in water
In accordance with column 2 of REACH Annex IX, the simulation test in ultimate biodegradation in water does not need to be conducted as the substance insoluble in water.
Biodegradation in sediment
The performance of simulation tests for biodegradation in water and sediment is scientifically unjustified.
REACH Regulation (EC) No 1907/2006, Annex IX, Sect. 9.2.1.2, Col. 2, states as follows:
“9.2.1.2: The study need not to be conducted:
- if the substance is readily biodegradable, or
- if direct and indirect exposure of sediment is unlikely. ”
Direct and indirect exposure of the test item to sediment and water is unlikely. It can be assumed that upon contact with sediment and organic matter, the test item undergoes rapid degradation (hydrolysis) resulting in the formation of respective degradation products. Furthermore, the test item is not soluble in water and was considered to be inherently biodegradable. Therefore, simulation testing for biodegradation in sediment and water was considered not scientifically justified.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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