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Reference
Endpoint:
oxidising liquids
Type of information:
experimental study
Adequacy of study:
key study
Study period:
30 November 2018 to 06 December 2018
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
EU Method A.21 (Oxidising Properties (Liquids))
Deviations:
no
GLP compliance:
yes (incl. certificate)
Contact with:
powdered cellulose
Duration of test (contact time):
4 h
Key result
Sample tested:
test mixture 1:1
Parameter:
mean pressure rise time
Result:
14.099 s
Key result
Sample tested:
reference mixture 1: 1
Parameter:
mean pressure rise time
Result:
3.269 s

Table 1: Drying Test Results (Cellulose dried at 105 °C for approximately 67 hours)

Tray No.

Tray Weight (g)

Tray & Wet

Powder Weight (g)

Tray & Dry

Powder Weight

(g)

Weight of

Sample Before Drying (g)

Weight of

Sample After

Drying (g)

Moisture

Loss (g)

Moisture

Loss (%)

1

476.4

597.8

593.7

121.4

117.3

4.1

3.4

Table 2: Summary of Results

 

Test Material: Cellulose (1:1)

65 % Nitric Acid: Cellulose (1:1)

Test 1 pressure rise time (sec)

16.014

3.856

Test 2 pressure rise time (sec)

12.058

3.380

Test 3 pressure rise time (sec)

12.542

3.135

Test 4 pressure rise time (sec)

11.689

2.966

Test 5 pressure rise time (sec)

18.192

3.009

Mean pressure rise time (sec)

14.099

3.269

30 % of mean value (sec)

4.230

0.981

Acceptable data range (sec)

9.869-18.329

2.288-4.250

 

The sample of the test material was found to have a mean pressure rise time greater than that observed for the nitric acid reference sample. The test material is therefore not considered to be an oxidising liquid.

Interpretation of results:
other: Not classified in accordance with EU criteria
Conclusions:
Under the conditions of this study the test material was not oxidising.
Executive summary:

The oxidising properties of the test material were investigated in accordance with the standardised guideline EU Method A.21, under GLP conditions.

The sample of the test material was found to have a mean pressure rise time greater than that observed for the nitric acid reference sample. The test material is therefore not considered to be an oxidising liquid.

Under the conditions of this study the test material was not oxidising.

Description of key information

Under the conditions of this study the test material was not oxidising.

Key value for chemical safety assessment

Oxidising properties:
non oxidising

Additional information

The oxidising properties of the test material were investigated in accordance with the standardised guideline EU Method A.21, under GLP conditions. The study was awarded a reliability score of 1 in accordance with the criteria set forth by Klimisch et al. (1997).

The sample of the test material was found to have a mean pressure rise time greater than that observed for the nitric acid reference sample. The test material is therefore not considered to be an oxidising liquid.

Under the conditions of this study the test material was not oxidising.

Justification for classification or non-classification

In accordance with the criteria for classification as defined in Annex I, Regulation (EC) No 1272/2008, the substance does not require classification with respect to oxidising properties.