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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:
2017-03-22
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
UN Manual of Tests and Criteria: Test N.1 (Test method for readily combustible solids)
Deviations:
no
GLP compliance:
yes (incl. certificate)
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 the preliminary test the test item could not be ignited. Based on the results of the preliminary test, no main test was performed.

Interpretation of results:
GHS criteria not met
Conclusions:
The test item is considered as a not readily combustible solid of Division 4.1.
Executive summary:

A preliminary test according to UN N.1 was performed to determine the flammability of the test substance. In the preliminary screening test the test item was heated with the flame of a gas burner (blowlamp) for two minutes. The test was performed twice. Since the test item could not be ignited in the preliminary test no further testing was required. The test item is considered as a not readily combustible solid of Division 4.1.

Endpoint:
flammable gases
Data waiving:
study technically not feasible
Justification for data waiving:
the study does not need to be conducted because the substance is a solid
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 organic substance does not contain metals or metalloids and hence, the classification procedure does not need to be applied
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
Endpoint:
pyrophoric liquids
Data waiving:
study technically not feasible
Justification for data waiving:
the study does not need to be conducted because the substance is a solid
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:
self-heating substances / mixtures
Data waiving:
study scientifically not necessary / other information available
Justification for data waiving:
other:

Description of key information

The substance has not to be classified as flammable gas, flammable liquid, flammable solid, pyrophoric solid, pyrophoric liquid, flammable in contact with water, flammable aerosol or self-heating substance.

Key value for chemical safety assessment

Flammability:
not classified

Additional information

Flammable solids (reference 4.13-1)

A preliminary test according to UN N.1 was performed to determine the flammability of the test substance.In the preliminary screening test the test item was heated with the flame of a gas burner (blowlamp) for two minutes. The test was performed twice. Since the test item could not be ignited in the preliminary test no further testing was required. The test item is considered as a not readily combustible solid of Division 4.1.

Flammable gases (reference 4.13-2)

The test item is a solid at ambient conditions. This hazard class is only applicable for gases. Thus, the substance was not considered for classification as flammable gas.

Flammable liquid (reference 4.11-1)

The test item is a solid at ambient conditions. This hazard class is only applicable for liquids. Thus, the substance was not considered for classification as flammable liquid.

Pyrophoric solids (reference 4.13-3)

In accordance with section 2.10.4 Annex I of Regulation (EC) No 1272/2008 and ECHA guidance on the application of CLP Criteria section 2.10.2 the classification procedure for pyrophoric solids need not to be applied when experience in manufacturing or handling shows that the substance or mixture does not ignite spontaneously when coming into contact with air at normal temperatures. Based on the experience in handling and use the substance is not known to ignite spontaneously when coming into contact with air at normal temperatures. Thus, no study was conducted and the substance was not considered for classification as pyrophoric solid.

Pyrophoric liquids (reference 4.13-4)

The test item is a solid at ambient conditions. This hazard class is only applicable for liquids. Thus, the substance was not considered for classification as pyrophoric liquid.

Substances which, in contact with water, emit flammable gases (reference 4.13-5)

In accordance with column 2 of REACH Annex VI and with Regulation (EC) No 1272/2008 Annex I section 2.12.4.1(a and b) the classification procedure for this hazard class need not to be applied. Based on the experience in handling and use the substance does not react with water and in addition the test substance is not pyrophoric. Furthermore, the chemical structure of the test item does not contain metals or metalloids. Thus, no study was conducted and the substance was not considered for classification.

Self-heating substances and mixtures (reference 4.13-6)

In accordance with section 2.11.4.2 of Regulation (EC) 1272/2008 the item was not considered to be a self-heating substance, because no self-ignition could bestated up to the melting point (204 to 205 °C according to literature) in the Auto-Ignition Temperature Tester (test performed according to test method A.16). Thus, no self-heating test was performed for the test item.

Flammable Aerosols

Section 2.4.2 of Guidance on the application on the CLP Criteria states as follows: “Aerosols, this means aerosol dispensers, are any non-refillable receptacles made of metal, glass or plastics and containing a gas compressed, liquefied or dissolved under pressure, with or without a liquid, paste or powder, and fitted with a release device allowing the contents to be ejected as solid or liquid particles in suspension in a gas, as a foam, paste or powder or in a liquid state or in a gaseous state." Thus, as the substance does not meet the definition for aerosol, the test for aerosols was waived. Consequently the substance has not to be considered for classification for this hazard class.

 

In conclusion the substance has not to be considered as flammable gas, flammable liquid, flammable solid, flammable in contact with water, flammable aerosol, pyrophoric solid, pyrophoric liquid or self-heating substance.

Justification for classification or non-classification

Classification, Labelling, and Packaging Regulation (EC) No. 1272/2008

In accordance with Annex I Section 2.2, Section 2.3, Section 2.6, Section 2.7, Section 2.9, Section 2.10 Section 2.11, Section 2.12 of Regulation (EC) No. 1272/2008, as amended for tenth time in Regulation (EC) No. 2017/776, and UN GHS Rev 7 (2017) the test item has not to be classified as flammable liquid, readily combustible solid in class 4, Division 4.1, self-heating substance in Class 4, Division 4.2, substances which in contact with water emit flammable gases in Class 4, Division 4.3, pyrophoric liquid, pyrophoric solid in class 4, Division 4.2, flammable gases in class 2 or as aerosol in class 2.