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EC number: 204-112-2 | CAS number: 115-86-6
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
- Endpoint:
- biodegradation in water: ready biodegradability
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- OECD Guideline 301 C (Ready Biodegradability: Modified MITI Test (I))
- GLP compliance:
- not specified
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- activated sludge (adaptation not specified)
- Duration of test (contact time):
- 28 d
- Initial conc.:
- 100 mg/L
- Based on:
- test mat.
- Parameter followed for biodegradation estimation:
- other: BOD
- Parameter:
- other: BOD
- Value:
- >= 83 - <= 94
- Sampling time:
- 28 d
- Parameter:
- BOD5
- Interpretation of results:
- readily biodegradable
- Conclusions:
- Under the conditions used TPP can be considered readily biodegradable
- Executive summary:
The test was conducted in accordance with "Biodegradation test of chemical substance by microorganisms etc." stipulated in the Order Prescribing the Items of the Test Relating to the New Chemical Substance (1974, Order of the Prime Minister, the Minister of Health and Welfare, the Minister of International Trade and Industry No. 1). This guideline corresponds to "301C, Ready Biodegradability: Modified MITI Test (I)" stipulated in the OECD Guidelines for Testing of Chemicals (1981).
As a biodegradation of 83 - 94% is found within 28 d the substance can be considered as "readily biodegradable".
Reference
The test was conducted in accordance with "Biodegradation test of chemical substance by microorganisms etc." stipulated in the Order Prescribing the Items of the Test Relating to the New Chemical Substance (1974, Order of the Prime Minister, the Minister of Health and Welfare, the Minister of International Trade and Industry No. 1). This guideline corresponds to "301C, Ready Biodegradability: Modified MITI Test (I)" stipulated in the OECD Guidelines
for Testing of Chemicals (1981)
Description of key information
The test was performed according to "301C, Ready Biodegradability: Modified MITI Test (I)" stipulated in the OECD Guidelines for Testing of Chemicals (1981).
As a biodegradation of 83 - 94 % is found within 28 d the substance can be considered as "readily biodegradable".
Key value for chemical safety assessment
- Biodegradation in water:
- readily biodegradable
Additional information
According to OECD guideline 301 "The 10-d window concept does not apply to the MITI method".
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