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Physical & Chemical properties

Flammability

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Reference
Endpoint:
flammable solids
Type of information:
experimental study
Adequacy of study:
key study
Study period:
22 September 2016
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Reference:
Composition 0
Qualifier:
according to
Guideline:
UN Manual of Tests and Criteria: Test N.1 (Test method for readily combustible solids)
Qualifier:
according to
Guideline:
other: VDI 2263, sheet 1 (1990)
GLP compliance:
no
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
Remarks:
The test item melted.

Results

 

Preliminary Test

The test item did not ignite at room temperature, the test item melted. Only the molten mass burned partly local and partly with propagation of flame for 5 minutes over a distance of 170 mm.

 

Main Test

In the preliminary test the test item could not be ignited by a flame. Therefore, the performance of the main test was not necessary. Only the molten mass burned partly local and partly with propagation of flame for 5 minutes over a distance of 170 mm.

 

Final Results

The test item could not be ignited applying a flame as ignition source for at least 2 minutes. The test item melted.

 

The test item is classified as follows:

UN Transport Regulation:The product has not to be classified asreadily combustible solidin class 4.1 according to the UN Transport Regulation.

GHS (CLP Regulation EC 1272/2008: Annex 1: 2.7):The product has not to be classified asflammable solidaccording to GHS / CLP Regulation EC 1272/2008 Annex 1: 2.7.

Interpretation of results:
not classified based on GHS criteria
Conclusions:
The substance is not flammable according to UN Test N.1 and has not to be classified as flammable solid according to GHS / CLP Regulation EC 1272/2008 Annex 1: 2.7.

Description of key information

non flammable

no pyrophoricity

no flammability on contact with water

not self-heating

Key value for chemical safety assessment

Flammability:
not classified

Additional information

The substance is not flammable according to UN Test N.1.

Based on the chemical structure and experience in handling and use, pyrophoricity and flammability on contact with water are not expected.

The substance is completely molten at a temperature well below 160 °C and therefore shows not self-heating behaviour if it is not absorbed on a large surface.

Justification for classification or non-classification

The substance is not flammable according to UN Test N.1 and has not to be classified as flammable solid according to GHS / CLP Regulation EC 1272/2008 Annex 1: 2.7.

The available data on flammability in contact with water, pyrophoricity and self-heating of the test substance do not meet the criteria for classification according to Regulation (EC) 1272/2008, and are therefore conclusive but not sufficient for classification.

Based on the chemical structure and experience in handling and use, pyrophoricity and flammability on contact with water are not expected.

The substance is completely molten at a temperature well below 160 °C and therefore shows not self-heating behaviour if it is not absorbed on a large surface.