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Diss Factsheets

Physical & Chemical properties

Flammability

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Endpoint:
flammable solids
Type of information:
experimental study
Adequacy of study:
key study
Study period:
May 16, 2017
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
EU Method A.10 (Flammability (Solids))
Version / remarks:
Council Regulation (EC) No 440/2008, Part A: Methods for the determination of physico-chemical properties, Guideline A.10. Flammability (solids), Official Journal of the European Union no. L142, May 31, 2008
Deviations:
no
GLP compliance:
no
Other quality assurance:
other: ISO 9001-2008
Key result
Test procedure:
burning rate test: preliminary screening test
Burning time:
ca. 228 s
Moisture (wt %):
1.2
Remarks on result:
other: As the burning time was within the test period limit of 4 minutes, the main burning rate test was performed to determine flammability for test substance.
Key result
Test procedure:
burning rate test over 100 mm length
Burning time:
ca. 122 - ca. 146 s
Moisture (wt %):
1.2
Remarks on result:
other: not considered as highly flammable according to EC Guideline A.10.

Results

Burning time of test substance over 100 mm

Burning rate test no.

Burning time for 100 mm (seconds)

1

133 sec

2

146 sec

3

139 sec

4

124 sec

5

130 sec

6

122 sec

- In the screening test, the time for burning 200 mm of the powder (paste) train was 3 minutes and 48 seconds. As it was within the test period limit of 4 minutes, the burning rate test was performed to determine flammability for test substance.

- The test substance ignites easily. However, the shortest burning time over 100 mm was 122 seconds and hence no sufficient speed of propagation of combustion occurred. This means that it is not considered as highly flammable according to EC Guideline A.10.

Interpretation of results:
other: CLP criteria not met
Remarks:
not classified
Conclusions:
Under the study conditions, the test substance is not considered as highly flammable.
Executive summary:

A study was conducted to determine the flammability of test substance, Oleyl TMAC (purity not specified), according to EU Method A.10 and ECHA Chapter R.7a, endpoint specific guidance. In the screening test, the gas flame was applied to one end of the substance strip. The substance was ignited easily and the time for burning 200 mm of the powder (paste) train was 3 minutes and 48 seconds. This was within the test period of 4 minutes and therefore the burning rate test was performed. The burning rate test was performed 6 times. The shortest burning time over 100 mm obtained was 122 seconds. This result (burning time over 100 mm ≥ 45 seconds) did mean that the test substance was not considered as highly flammable according to EC A.10 method. Under the study conditions, the test substance is not considered as highly flammable (Post, 2017).

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
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

Description of key information

The flammability of the test substance was determined according to EU method A.10 (Post, 2017).

Key value for chemical safety assessment

Flammability:
not classified

Additional information

A study was conducted to determine the flammability of test substance, Oleyl TMAC (purity not specified), according to EU Method A.10 and ECHA Chapter R.7a, endpoint specific guidance. In the screening test, the gas flame was applied to one end of the substance strip. The substance was ignited easily and the time for burning 200 mm of the powder (paste) train was 3 minutes and 48 seconds. This was within the test period of 4 minutes and therefore the burning rate test was performed. The burning rate test was performed 6 times. The shortest burning time over 100 mm obtained was 122 seconds. This result (burning time over 100 mm ≥ 45 seconds) did mean that the test substance was not considered as highly flammable according to EC A.10 method. Under the study conditions, the test substance is not considered as highly flammable (Colomer, 2017).

Justification for classification or non-classification

Based on the study results, the test substance does not warrant a classification for flammability according to the EU CLP criteria (Regulation 1272/2008/EC).