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Reference
Endpoint:
oxidising solids
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2018-06-27 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:
4:1 sample-to-cellulose ratio
Parameter:
mean burning time
Result:
> 180 s
Key result
Sample tested:
1:1 sample-to-cellulose ratio
Parameter:
mean burning time
Result:
> 180 s
Key result
Sample tested:
reference: 3:7 mixture potassium bromate + cellulose
Parameter:
mean burning time
Result:
125 s

The  tests  with  the  mixture  potassium  bromate:cellulose  2:3  and  3:2  were  not  performed, because the burning time of the mixtures of the test item with cellulose was higher than the burning time of the reference mixtures 3:7.

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 TA-1 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 TA-1 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 test results the test item does not have to be classified as oxidizing solid.

Key value for chemical safety assessment

Oxidising properties:
non oxidising

Additional information

Justification for classification or non-classification

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

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.