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Physical & Chemical properties

Flammability

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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 substance is known to be soluble in water to form a stable mixture
Endpoint:
flammable solids
Type of information:
experimental study
Adequacy of study:
key study
Study period:
From 12 October 2017 to 21 February 2018
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Reason / purpose:
reference to other study
Related information:
Composition 1
Reason / purpose:
reference to other study
Related information:
Composition 1
Reason / purpose:
reference to other study
Related information:
Composition 1
Reason / purpose:
reference to other study
Related information:
Composition 1
Reference:
Composition 0
Qualifier:
according to
Guideline:
UN Manual of Tests and Criteria: Test N.1 (Test method for readily combustible solids)
Version / remarks:
2015
Deviations:
no
Qualifier:
according to
Guideline:
EU Method A.10 (Flammability (Solids))
Version / remarks:
2016
Deviations:
no
GLP compliance:
yes (incl. certificate)
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

In contact with the flame of the gas burner the test item melted, emitted orange sparks and turned into a brown residue. White smoke was observed. After removal of the ignition source, no propagation of combustion of the test item was observed.

Interpretation of results:
not classified based on GHS criteria
Conclusions:
The test item did not propagate combustion along 200 mm of the pile within the 4 minutes test period, therefore no burning test rate is required. The test item is therefore considered ‘not highly flammable” and not classified for the hazard class according to CLP and GHS regulation
Executive summary:

The flammability of the test item was determined in a preliminary test performed according to a recognised guideline and under GLP. No deviation from the guideline was observed during the test (Brekelmans, 2018).

In the preliminary test, the test item did not propagate combustion along 200 mm of the pile within the 4 minutes test period, therefore no burning test rate is required. The test item is therefore considered ‘not highly flammable” and is not classified for the hazard class according to CLP and GHS regulation.

Description of key information

The flammability of the test item was detemined in a key study (Brekelmans, 2018) of Klimisch validity 1 performed according to recognised guidelines and in compliance with GLP (Brekelmans, 2018).

No deviation from the guideline was observed in the study.

Key value for chemical safety assessment

Flammability:
not classified

Additional information

Justification for classification or non-classification

Based on the results obtained in an experimental study (Brekelmans, 2018) performed according to UN N.1 method and in complaince with Godd Laboratory practices (GLP), the test item is considered as non-flammable solid.

Based on handling and manufacturing practices, the test item is known to not be flammable in contact with air or to emit flammable gas in contact with water. Therefore,

the test item is not classified for flammability hazard according to GHS criteria.