Registration Dossier

Administrative data

Endpoint:
toxicity to microorganisms
Type of information:
experimental study
Adequacy of study:
supporting study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Guideline study obtained through inquiry process; SNIF file obtained from ECHA.

Data source

Reference
Reference Type:
other: SNIF
Title:
Unnamed
Year:
1997

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
other: Directive 87/302 No. 133/118
Deviations:
not specified
GLP compliance:
yes

Test material

Reference
Name:
Unnamed
Type:
Constituent
Test material form:
not specified

Sampling and analysis

Analytical monitoring:
not specified

Test solutions

Vehicle:
not specified

Study design

Test type:
other: aerobic
Water media type:
not specified
Total exposure duration:
0.5 h

Results and discussion

Effect concentrations
Duration:
30 min
Dose descriptor:
IC50
Effect conc.:
> 100 mg/L
Nominal / measured:
not specified
Conc. based on:
not specified
Basis for effect:
not specified

Applicant's summary and conclusion

Validity criteria fulfilled:
not specified
Conclusions:
IC50 > 100 mg/L (0.5h)
The test substance is not considered to be toxic to microorganisms under the conditions of the test.
Executive summary:

The acute toxicity of the test substance to microorganisms has been determined in a test according to Directive 87/302 No. 133/118. The IC50 (0.5h) was > 100 mg/L. This result shows that at a concentration in excess of the water solubility level of the test material, the test material does not have an effect on the respiration rate of activated sewage sludge.