Registration Dossier

Diss Factsheets

Administrative data

Endpoint:
activated sludge respiration inhibition testing
Type of information:
experimental study
Adequacy of study:
supporting study
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
documentation insufficient for assessment

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1982
Report date:
1982

Materials and methods

Test guideline
Qualifier:
no guideline available
Principles of method if other than guideline:
Pseudomonas putida respiration inhibition test, incubation time 30 min
GLP compliance:
no
Remarks:
Study conducted prior to GLP implementation

Test material

Constituent 1
Chemical structure
Reference substance name:
p-tert-butylaniline
EC Number:
212-215-9
EC Name:
p-tert-butylaniline
Cas Number:
769-92-6
Molecular formula:
C10H15N
IUPAC Name:
p-tert-butylaniline

Test solutions

Details on test solutions:
The test substance was pre-treated in the following way: 1g/L test substance and 1 g/L Emulsifier W/Emulvin W were stirred and afterwards filtrated through a paper filter. From this stock solution dilutions were produced.

Test organisms

Test organisms (species):
Pseudomonas putida

Study design

Water media type:
freshwater
Total exposure duration:
30 min

Results and discussion

Effect concentrations
Duration:
30 min
Dose descriptor:
EC0
Effect conc.:
250 mg/L
Remarks on result:
other: No inhibition of respiration has been observed at 250 mg/L

Applicant's summary and conclusion

Validity criteria fulfilled:
not specified
Conclusions:
No inhibition of respiration has been observed at 250 mg/L (=EC0).