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EC number: 619-217-2
CAS number: 96487-85-3
Acceptability of the test:
1. The positive control item was biodegraded
by at least 60% within 14 days (i.e. 70%).
2. The difference of duplicate values for
%-degradation of the test item was always less than 20% (i.e. ≤0%).
3. The total CO2 release in the blank at the
end of the test did not exceed 40 mg/L (e.g. 60.9 mg CO2 per 2 litres of
medium, corresponding to 30.45 mg CO2/L).
4. The Inorganic Carbon content (IC) of the
test item (suspension) in the mineral medium at the beginning of the
test was less than 5% of the Total Carbon content (TC). Since the test
medium was prepared in tap-water purified by reverse osmosis, IC was
less than 5% of TC (mainly coming from the test item, 12 mg TOC/L).
All criteria for acceptability were met,
therefore this study was considered to be valid.
In a 28 day during test performed according
to OECD guideline 301B (modified Sturm test) and GLP principles, the
test item did not reach the pass level of 60% for ready
biodegradability, neither within the 10 -d window nor after 28 days of
incubation. The test item was tested in duplicate and showed 0%
biodegradation in both bottles tested. Therefore, it is designated as
not readliy biodegradable. All the criteria for acceptability of the
test were met and the study is considered reliable without restrictions.
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