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Reference
Endpoint:
oxidising solids
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2018-06-26 to 2018-08-02
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
UN Manual of Tests and Criteria: Test O.1 (Test for oxidizing solids)
Version / remarks:
2015/2017
Deviations:
no
GLP compliance:
yes (incl. certificate)
Contact with:
powdered cellulose
Duration of test (contact time):
3 min
Key result
Sample tested:
reference: 3:7 mixture potassium bromate + cellulose
Parameter:
mean burning time
Result:
125 s
Key result
Sample tested:
4:1 sample-to-cellulose ratio
Parameter:
mean burning time
Result:
> 180 s
Remarks on result:
mixture does not ignite and burn
Key result
Sample tested:
1:1 sample-to-cellulose ratio
Parameter:
mean burning time
Result:
> 180 s
Remarks on result:
mixture does not ignite and burn

Table 1: Burning times of the reference mixtures of potassium bromate and cellulose

Potassium bromate - Cellulose

Test 1/s

Test 2/s

Test 3/s

Test 4/s

Test 5/s

Average/s

3:7

124

122

122

127

130

125

Table 2: Burning times of the mixtures of the test item and cellulose

Test item - Cellulose

Test 1/s

Test 2/s

Test 3/s

Test 4/s

Test 5/s

Average/s

4:1

> 180

> 180

> 180

> 180

> 180

> 180

1:1

> 180

> 180

> 180

> 180

> 180

> 180

Interpretation of results:
GHS criteria not met
Conclusions:
The burning time of the mixtures of the test item with cellulose (4:1 and 1:1) was higher than the burning time of the reference mixture of potassium bromate and cellulose (3:7). Due to the tests results the test item does not have to be classified as oxidizing solid.
This test item has to be classified as follows:
UN Transport Regulation: The test item does not have to be classified as oxidizing solid in Division 5.1 according to the UN Transport Regulation.
GHS and EC 1272/2008 (CLP Regulation), Annex 1: 2.14: The test item does not have to be classified as oxidizing solid according to GHS and EC 1272/2008 (CLP Regulation) Annex 1: 2.14.

Description of key information

The burning time of the mixtures of the test item with cellulose (4:1 and 1:1) was higher than the burning time of the reference mixture of potassium bromate and cellulose (3:7). Due to the tests results the test item does not have to be classified as oxidizing solid.

This test item has to be classified as follows:

UN Transport Regulation: The test item does not have to be classified as oxidizing solid in Division 5.1 according to the UN Transport Regulation.

GHS and EC 1272/2008 (CLP Regulation), Annex 1: 2.14: The test item does not have to be classified as oxidizing solid according to GHS and EC 1272/2008 (CLP Regulation) Annex 1: 2.14.

Key value for chemical safety assessment

Oxidising properties:
non oxidising

Additional information

Justification for classification or non-classification