Registration Dossier

Environmental fate & pathways

Biodegradation in water: screening tests

Administrative data

Endpoint:
biodegradation in water: ready biodegradability
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2000-10-25 - 2000-11-27, final report 2001-01-03
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Guideline study and GLP

Data source

Referenceopen allclose all

Reference Type:
study report
Title:
Unnamed
Year:
2001
Report Date:
2001
Reference Type:
other: raw data
Title:
Unnamed
Year:
2001
Report Date:
2001

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to
Guideline:
OECD Guideline 301 F (Ready Biodegradability: Manometric Respirometry Test)
Qualifier:
according to
Guideline:
EU Method C.4-D (Determination of the "Ready" Biodegradability - Manometric Respirometry Test)
GLP compliance:
yes

Test material

Reference
Name:
Unnamed
Type:
Constituent
Details on test material:
Active Matter = 98,4 %
Manufacturer: Organic Specialities Leicester
Batch No.: GN 1-56 39/62-88
Substance-No.: SAT 000926
ASS-No.: 0003880 2

Study design

Oxygen conditions:
aerobic
Inoculum or test system:
other: sewage treatment plant effluent/biological stage
Duration of test (contact time):
28 d
Initial test substance concentration
Initial conc.:
100 mg/L
Parameter followed for biodegradation estimation
Parameter followed for biodegradation estimation:
O2 consumption

Results and discussion

% Degradation
Value:
0
Sampling time:
28 d
Details on results:
The reference substance was Sodium acetate-3-hydrate (SAT 981175) and reached 89% BOD/ThOD after 28 days (limiting value 60% BOD/ThOD after 14 days).

Any other information on results incl. tables

Ecolog Transfer, EcoNr: (10063)

Applicant's summary and conclusion

Validity criteria fulfilled:
yes
Interpretation of results:
other: poorly biodegradable under pertaining test conditions
Conclusions:
RO 1525 was tested in the Manometric Respirometry Test (Trial-No. 65) with a result of <10 % after 28 days. RO 1525 was poorly biodegradable under pertaining test conditions.
Executive summary:

RO 1525 was tested in the Manometric Respirometry Test (Trial-No. 65) with a result of <10 % after 28 days. RO 1525 was poorly biodegradable under pertaining test conditions.