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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Administrative data

Endpoint:
toxicity to microorganisms
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: GLP guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1989
Report date:
1989

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
DIN 38412-8 (Pseudomonas Zellvermehrungshemmtest)
GLP compliance:
no

Test material

Constituent 1
Reference substance name:
Reaction mass of iodine and 2-Pyrrolidinone, 1-ethenyl-, homopolymer
EC Number:
913-404-5
Molecular formula:
Unspecified
IUPAC Name:
Reaction mass of iodine and 2-Pyrrolidinone, 1-ethenyl-, homopolymer
Details on test material:
- Name of test material (as cited in study report): PVP Jod 30106
- Analytical purity: > 99 %

Sampling and analysis

Analytical monitoring:
no

Test solutions

Vehicle:
no

Test organisms

Test organisms (species):
Pseudomonas putida
Details on inoculum:
- Laboratory culture: DSM 50026

Study design

Test type:
static
Water media type:
freshwater
Limit test:
no
Total exposure duration:
17 h

Test conditions

Test temperature:
20 °C
Nominal and measured concentrations:
Nominal test substance concentrations:
15.63, 31.25, 62.5, 125, 250, 500 and 500 (neutralised) mg/l
Details on test conditions:
TEST SYSTEM
- Test vessel: Erlenmeyer vessels (300 ml)
- Fill volume: 100 ml
- No. of vessels per concentration (replicates): 4
- No. of vessels per control (replicates): 4

Results and discussion

Effect concentrationsopen allclose all
Duration:
17 h
Dose descriptor:
EC10
Effect conc.:
270 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
growth inhibition
Duration:
17 h
Dose descriptor:
EC50
Effect conc.:
380 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
growth inhibition
Duration:
17 h
Dose descriptor:
other: EC90
Effect conc.:
180 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
growth inhibition

Applicant's summary and conclusion