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Diss Factsheets

Administrative data

Endpoint:
oxidising liquids
Type of information:
experimental study
Adequacy of study:
key study
Study period:
13.-15. July 2011
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Study performed according to EU testing guideline, but not under GLP conditions.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2011
Report date:
2011

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
EU Method A.21 (Oxidising Properties (Liquids))
Deviations:
no
GLP compliance:
no

Test material

Constituent 1
Reference substance name:
Absorbent A2
IUPAC Name:
Absorbent A2
Details on test material:
- Name of test material (as cited in study report): Absorbent A2
- Substance type: UVCB
- Physical state: Brown liquid
- Stability under test conditions: months
- Storage condition of test material: room temperature, in the dark

Study design

Contact with:
powdered cellulose
Duration of test (contact time):
>= 60 s

Results and discussion

Test results (Oxidising liquids)
Sample tested:
reference mixture (not specified)
Remarks:
migrated information
Parameter:
mean pressure rise time
Result:
4.49 s
Remarks on result:
other: +/- 30 %

Any other information on results incl. tables

Reference substance:

In Table 1 the pressure rise times from 690 kPag to 2070 kPag for the 1:1 mixtures, by mass, of 65 % (w/w) nitric acid and cellulose are shown.

Table 1: Pressure rise time for the 1:1 mixtures, by mass, of 65 % nitric acid and cellulose

 

Test 1

Test 2

Test 3

Test 4

Test 5

Time at 690 kPag in s

18.03

16.58

19.52

20.14

19.50

Time at 2070 kPag in s

22.33

21.00

24.21

25.04

23.65

Pressure rise time in s

4.30

4.43

4.69

4.90

4.15

 

The mean pressure rise time is 4.49 s. All measured values are within the tolerable range of ± 30% (3.14 – 5.84 s) of the mean pressure rise time.

Test item:

In Table 2 the pressure rise times from 690 kPag to 2070 kPag for the 1:1 mixtures, by mass, of the test item and cellulose are shown.

Table 2: Pressure rise time for the 1:1 mixtures, by mass, of test item and cellulose

 

Test 1

Test 2

Test 3

Test 4

Test 5

Time at 690 kPag in s

25.10

26.59

23.74

24.38

24.41

Time at 2070 kPag in s

not reached

not reached

not reached

not reached

not reached

Pressure rise time in s

n/a

n/a

n/a

n/a

n/a

In tests all tests no bursting of a rupture disc was observed.

The mean pressure rise time of the tests can not be calculated for thetest item because the pressure limit of 2070 kPag was not reached.

Applicant's summary and conclusion

Interpretation of results:
other: no oxidising properties
Remarks:
Migrated information
Conclusions:
The test item has no oxidising properties in the sense of the consolidated version of European Commission Regulation (EC) No. 440/2008, Method A.21.
Executive summary:

Due to the fact that the 1:1 mixture, by mass, of test item and cellulose has a mean pressure rise time higher than that of a 1:1 mixture, by mass, of 65 % nitric acid and cellulose the test item has no oxidising properties.