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Diss Factsheets

Physical & Chemical properties

Oxidising properties

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Administrative data

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Endpoint:
oxidising properties
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Guideline study, adequate documentation.
Qualifier:
according to guideline
Guideline:
other: Test O.1, UN RTDG, Manual of Tests and Criteria, 5th Ed, 2009.
Deviations:
no
Principles of method if other than guideline:
This test method is designed to measure the potential for a solid substance to increase the burning rate or burning intensity of a combustible substance when the two are thoroughly mixed. The test sample is mixed in a 4:1 and a 1:1 ratio, by mass, with fibrous cellulose, the mixture ignited with a wire coil and the speed and mode of decomposition observed and compared with that for the reference mixtures (Potassium Bromate / Cellulose).
GLP compliance:
no
Contact with:
powdered cellulose
Duration of test (contact time):
ca. 360 s
Sample tested:
other: not specified (migrated information) Mean Burning Time
Parameter:
other: Mean Burning Time
Result:
359 s
Remarks on result:
other: Ratio 4:1, test substance to cellulose
Sample tested:
other: not specified (migrated information) Mean Burning Time
Parameter:
other: Mean Burning Time
Result:
313 s
Remarks on result:
other: Ratio 1:1, test substance to cellulose
Sample tested:
other: not specified (migrated information) Mean Burning Time
Parameter:
other: Mean Burning Time
Result:
73 s
Remarks on result:
other: Reference mixture, ratio 3:7, potassium bromate to cellulose
Sample tested:
other: not specified (migrated information) Mean Burning Time
Parameter:
other: Mean Burning Time
Result:
359 s
Remarks on result:
other: Ratio 4:1, test substance to cellulose
Sample tested:
other: not specified (migrated information) Mean Burning Time
Parameter:
other: Mean Burning Time
Result:
313 s
Remarks on result:
other: Ratio 1:1, test substance to cellulose
Sample tested:
other: not specified (migrated information) Mean Burning Time
Parameter:
other: Mean Burning Time
Result:
73 s
Remarks on result:
other: Reference mixture, ratio 3:7, potassium bromate to cellulose
Interpretation of results:
other: not oxidising
Conclusions:
The substance does not meet the criteria for an oxidising substance according to the criteria laid out in the method Test O.1, UN Recommendations on the Transport of Dangerous Goods, Manual of Tests and Criteria, 5th Ed., 2009.
Executive summary:

The test substance had a mean burning time of 359s in a 4:1 mixture with cellulose. A 1:1 mixture had a mean burning time of 313s. The mean burning time of a 3:7 reference mixture of potassium bromate and cellulose was 73s. The substance does not meet the criteria for an oxidising substance according to the criteria laid out in the method Test O.1, UN Recommendations on the Transport of Dangerous Goods, Manual of Tests and Criteria, 5th Ed., 2009.

Endpoint:
oxidising solids
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Guideline study conducted under GLP.
Reason / purpose for cross-reference:
reference to same study
Qualifier:
according to guideline
Guideline:
EU Method A.17 (Oxidising Properties (Solids))
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Contact with:
powdered cellulose
Sample tested:
reference mixture (not specified)
Remarks:
migrated information
Parameter:
maximum burning rate
Result:
1.94 other: mm/s (migrated information)
Remarks on result:
other: 100% cellulose
Sample tested:
reference mixture (not specified)
Remarks:
migrated information
Parameter:
maximum burning rate
Result:
4.65 other: mm/s (migrated information)
Remarks on result:
other: 60% barium nitrate/cellulose
Sample tested:
test mixture (not specified)
Remarks:
migrated information
Parameter:
maximum burning rate
Result:
2.78 other: mm/s (migrated information)
Remarks on result:
other: 30% test substance/cellulose
Interpretation of results:
other: no oxidising properties
Remarks:
Migrated information
Conclusions:
The reference substance required by EU test method A17 is different to that required by the UN Recommendations on the Transport of Dangerous Goods, Manual of Tests and Criteria, Part III, O.1. The study is considered to be adequate and reliable.

Description of key information

Not oxidising, EU Method A.17, Jackson 1999
Not oxidising, UN TGD Test O.1, Bailey 2010

Key value for chemical safety assessment

Oxidising properties:
no

Additional information

The reference substance required by EU test method A.17 is different to that required by the UN Recommendations on the Transport of Dangerous Goods, Manual of Tests and Criteria, Part III, O.1.

The substance does not meet the criteria for an oxidising substance under the conditions of either test. The combination of both results is thus considered to be adequate for the purposes of classification and labelling, and risk assessment.

Justification for classification or non-classification

The available experimental test data are considered reliable and suitable for classification purposes under Regulation (EC) No. 1272/2008, Annex I, section 2.14. The substance is not considered to be oxidising according to the criteria given in the UN Recommendations on the Transport of Dangerous Goods, Manual of Tests and Criteria, Part III, 34.4.1. As a result the substance is not considered to be classified as oxidising under Regulation (EC) No. 1272/2008.