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EC number: 700-054-1
CAS number: 70905-68-9
Table 2: Biodegradation of Triol and the reference item.
Percentage biodegradation (corrected for inoculum controls)
Flask No. 5
Flask No. 6
Flask No. 3
Flask No. 4
Flask No. 8
Mean (Day 28)
The test item Triol was investigated for its ready biodegradability in a
28 -day manometric respiratory test based on Commission Directive
92/69/EEC, C.4 -D, 1992, and OECD Guideline No. 301 F, 1992.
The biochemical oxygen demand (BOD) of Triol in the test media was
within the range of the inoculum control.
Consequently, Triol was found to be not biodegradable under the test
conditions within 28 days.
In the toxicity control, containing both Triol and the reference item
sodium benzoate, no inhibitory effect on the biodegradation of the
reference item was determined. Thus, Triol had obviously no inhibitory
effect on the activity of activated sludge microorganisms.
In the procedure controls, the reference item sodium benzoate was
biodegraded by an average of 84 % after two weeks, and reached an
average biodegradation rate of 89 % by the end of the tes, thus
confirming the suitability of the activated sludge.
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