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Physical & Chemical properties

Flammability

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Endpoint:
flammable solids
Type of information:
experimental study
Adequacy of study:
key study
Study period:
16 January 2017 to 01 February 2017
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Reason / purpose:
reference to same study
Related information:
Composition 1
Reason / purpose:
reference to same study
Related information:
Composition 1
Reference:
Composition 0
Qualifier:
according to
Guideline:
EU Method A.10 (Flammability (Solids))
Version / remarks:
2008
Deviations:
no
Qualifier:
according to
Guideline:
UN Manual of Tests and Criteria: Test N.1 (Test method for readily combustible solids)
Version / remarks:
2015
Deviations:
no
GLP compliance:
yes
Test material information:
Composition 1
Key result
Test procedure:
burning rate test: preliminary screening test
Remarks on result:
substance does not ignite and propagate combustion either by burning with flame or smouldering along 200 mm of the powder train within the 2 minutes test period

The flame of the gas burner did ignite the test material pile. The test material burned with a yellow/blue flame, emitted yellow sparks and turned into a dark purple residue. Purple smoke was observed. After removal of the ignition source, the flame extinguished after 1 second and no propagation of combustion was observed.

Interpretation of results:
other: Not highly flammable in accordance with EU criteria
Conclusions:
Under the conditions of this study, the test material is considered ‘not highly flammable’.
Executive summary:

The flammability of the test material was investigated in accordance with the standardised guidelines EU Method A.10 and UN Test N.1 under GLP conditions.

A preliminary screening test was performed and no propagation of combustion of the test material along the 200 mm length of the pile within 4 minutes was observed. Performance of the burning rate test was not required.

Under the conditions of this study, the test material is considered ‘not highly flammable’.

Endpoint:
pyrophoric solids
Data waiving:
study scientifically not necessary / other information available
Justification for data waiving:
the study does not need to be conducted because the substance is known to be stable in contact with air at room temperature for prolonged periods of time (days) and hence, the classification procedure does not need to be applied
Endpoint:
substances / mixtures which in contact with water emit flammable gases
Data waiving:
study scientifically not necessary / other information available
Justification for data waiving:
the study does not need to be conducted because the experience in production or handling shows that the substance does not react with water, e.g. the substance is manufactured with water or washed with water

Description of key information

The test material is considered ‘not highly flammable’.

Key value for chemical safety assessment

Flammability:
not classified

Additional information

Flammability

The flammability of the test material was investigated in accordance with the standardised guidelines EU Method A.10 and UN Test N.1 under GLP conditions. The study was awarded a reliability score of 1 in accordance with the criteria set forth by Klimisch et al. (1997).

A preliminary screening test was performed and no propagation of combustion of the test material along the 200 mm length of the pile within 4 minutes was observed. Performance of the burning rate test was not required.

Under the conditions of this study, the test material is considered ‘not highly flammable’.

Pyrophoricity

In accordance with point 1 of Annex XI, it is considered justified to omit the testing for pyrophoric properties. Testing does not appear scientifically necessary as experience in use and experience of handling the substance indicates that it does not possess pyrophoric properties.

Flammability in contact with water

In accordance with point 1 of Annex XI, it is considered justified to omit the testing for substances or mixtures which in contact with water emit flammable gases. Testing does not appear scientifically necessary as experience in use and experience of handling the substance indicates that it does not emit flammable gases in contact with water.

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 flammability.