Registration Dossier
Registration Dossier
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EC number: 701-085-3 | CAS number: -
Toxicity to microorganisms
Administrative data
- Endpoint:
- activated sludge respiration inhibition testing
- Data waiving:
- study scientifically not necessary / other information available
- Justification for data waiving:
- other:
- Justification for type of information:
- JUSTIFICATION FOR DATA WAIVING
In accordance with Annex VIII, section 9.1.4, column 2 of REACH Regulation, activated sludge respiration inhibition testing does not need to be conducted if there are mitigating factors indicating that microbial toxicity is unlikely to occur.
The test substance is composed of quartz (SiO2) and chalk (CaO). Both are natural constituents of different type of soils (e.g. sand) and can be found ubiquitous in nature. Observations show that microorganisms show a high tolerance towards constituents of sand. Therefore any adverse effect on microorganisms in sewage treatment plants can be excluded and a test is scientifically not justified.
Data source
Materials and methods
Results and discussion
Applicant's summary and conclusion
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.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
