Mate, ext.

Flammability

Link to relevant study record(s)

Reference

Endpoint:

flammable solids

Type of information:

experimental study

Adequacy of study:

key study

Study period:

Testing was conducted on 06 August 2018.

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Justification for type of information:

The study was conducted according to an internationally recognised method, and under GLP. No deviation was reported. Test substance is adequately specified. Therefore full validation applies

Qualifier:

according to guideline

Guideline:

UN Manual of Tests and Criteria: Test N.1 (Test method for readily combustible solids)

Version / remarks:

2015

Deviations:

no

Principles of method if other than guideline:

Not applicable

GLP compliance:

yes (incl. QA statement)

Remarks:

Inspected on 4,5 and 6 July 2016/ Signed on 10 January 2017

Key result

Test procedure:

burning rate test: preliminary screening test

Remarks on result:

other: The flame from the gas burner was applied to one end of the powder train for 2 minutes and the test item ignited some seconds before extinguishing. No propagation of the combustion along 200 mm within four minutes occurs.

Results of the Preliminary Test

The flame from the gas burner was applied to one end of the powder train for 2 minutes and the test item ignited some seconds before extinguishing. The test item melts in contact with the gas burner and some smoke is emitted.

As no propagation of the combustion (flame or smouldering) along 200 mm within four minutes occurs, the test item is classified as not highly flammable, and no further testing is carried out.

Interpretation of results:

not classified based on GHS criteria

Conclusions:

The test item is not classified as a flammable solid according to Regulation (EC) N°1272/2008 (CLP) criteria.

Executive summary:

The substance was tested for its flammable properties, according to UN MTC N1 guideline, and under GLP.

During the preliminary assay, the flame from the gas burner was applied to one end of the powder train for 2 minutes and the test item ignited some seconds before extinguishing. No propagation of the combustion along 200 mm within four minutes occurs.

Description of key information

Flash Point= 50°C (exp) => Flammable liquid, category 3 (CLP/GHS)

No propagation of the combustion along 200 mm within four minutes occurs (exp) => NOT a flammable solid (CLP/GHS)..

NOT flammable if contact with air or water (waived).

NO self-heating properties anticipated (waived)

Key value for chemical safety assessment

Flammability:

not classified

Additional information

Considering the substance is a pasty solid the evaluation of Flammability of the substance according to UN N1 method is considered in this dossier and is presented under the endpoint 4.13. Additionally, flash point was also tested according to ISO/EU equilibrium closed cup method, and is presented under point 4.11. Both are considered as key studies.

Justification for classification or non-classification

The measured flash point (50°C) is below 60°C , therefore the substance is classified as Flammable liquid category 3 according to Regulation (EC) N°1272/2008 (CLP criteria) and UN Globally Harmonized System (GHS criteria).

During the UN Test N.1, no propagation of the combustion along 200 mm within four minutes occurs. Therefore, the substance is NOT classified as a flammable solid according to Regulation (EC) N°1272/2008 (CLP criteria) and UN Globally Harmonized System (GHS criteria).

Based on the chemical structure of the known constituents and experience in handling, testing and use of the substance, no flammable properties are anticipated if contact with air or water, therefore studies were deemed unnecessary in accordance with section 1 of REACh Annex XI.

Finally the substance is described as a brown pasty solid (see endpoint 4.1) and with a melting point below 160°C (see endpoint 4.2). Considering that the substance is totally molten below 160°C, no classification as self-heating substance is anticipated.