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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Ecotoxicological information

Toxicity to microorganisms

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Administrative data

Link to relevant study record(s)

Description of key information

Noack 1997, RA-A (Resin 835 A), Activated sludge respiration inhibition, OECD 209: not toxic upt to 10 000 mg/L.

Key value for chemical safety assessment

EC50 for microorganisms:
10 000 mg/L
EC10 or NOEC for microorganisms:
10 000 mg/L

Additional information

A closely related test substance was not toxic to bacteria of activated sludge of a predominantly domestic sewage in concentrations of <= 10000 mg/L. The validity criteria were fulfilled.

A justification for read-across is given in section 13, Assessment reports.