Registration Dossier

Administrative data

Endpoint:
toxicity to microorganisms
Type of information:
experimental study
Adequacy of study:
other information
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Comparable to guideline study with acceptable restrictions, however only limited information on test performance available.

Data source

Reference
Reference Type:
publication
Title:
Forschungsbericht, Bewertung wassergefaehrdender Stoffe im Hinblick auf Lagerung, Umschlag und Transport und Untersichung zur Abklaerung substanz- und bewertungsmethodenspezifischer Grenzfaelle bei der Bewertung wassergeaehrdender Stoffe
Author:
Trenel J, Kuehn R
Year:
1982
Bibliographic source:
Institut für Wasser-, Boden- und Lufthygiene, Berlin, July 1982.

Materials and methods

Principles of method if other than guideline:
Test method according to Bringmann and Kuehn 1979
GLP compliance:
no

Test material

Reference
Name:
Unnamed
Type:
Constituent
Details on test material:
- Name of test material (as cited in study report): Maleinsaeureanhydrid
Maleic anhydride hydrolyses under test conditions. As a result it is believed that maleic acid and its sodium salt were investigated in this study.

Sampling and analysis

Analytical monitoring:
not specified

Test solutions

Vehicle:
not specified

Test organisms

Test organisms (species):
Pseudomonas putida

Study design

Test type:
static
Water media type:
freshwater
Total exposure duration:
18 h

Results and discussion

Effect concentrations
Duration:
18 h
Dose descriptor:
EC10
Effect conc.:
11 800 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
growth inhibition

Applicant's summary and conclusion