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Flammability

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Endpoint:
flammable solids
Type of information:
experimental study
Adequacy of study:
key study
Study period:
17 January 2017 to 26 January 2017
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Reason / purpose for cross-reference:
reference to same study
Reason / purpose for cross-reference:
reference to same study
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
GLP compliance:
yes (incl. QA statement)
Specific details on test material used for the study:
SOURCE OF TEST MATERIAL
- Batch No.of test material: 16-9362
- Expiration date of the lot/batch: 07 November 2017

STABILITY AND STORAGE CONDITIONS OF TEST MATERIAL
- Storage condition of test material: Room temperature, under nitrogen in the dark
Key result
Test procedure:
burning rate test: preliminary screening test
Burning time:
77 s
Key result
Test procedure:
burning rate test over 100 mm length
Burning time:
43 s

Preliminary screening test

The test material burned with an orange glow which emitted orange, yellow and white sparks. The time taken to propagate over 200 mm was 1 minute 17 seconds.

Burning rate test

The test material burned with an orange glow which emitted yellow and white sparks. The time taken to propagate over 100 mm was 43 seconds.

Due to the burning time achieved no further testing was required.

Interpretation of results:
other: The test material is classified as category 1 in accordance with EU criteria
Conclusions:
Under the conditions of this study, the test material is classified as category 1 in accordance with EU criteria.
Executive summary:

The flammability of the test material was determined in accordance with the standardised guideline UN Method N.1 using the burning rate test under GLP conditions.

For the preliminary screening test a mould was loosely filled with test material, a non-combustible, non-porous board was placed onto the mould which was then inverted. The mould was removed and an air-rich Bunsen burner flame applied to one end of the pile. The test material burned with an orange glow which emitted orange, yellow and white sparks. The time taken to propagate over 200 mm was 1 minute 17 seconds.

For the burning rate test, a mould was loosely filled with test material. The mould was dropped three times from a height of approximately 2 cm onto a solid surface. A non-combustible, non-porous board was placed on top of the mould which was then inverted. The mould was removed and an air-rich Bunsen burner flame used to ignite the pile. The test material burned with an orange glow which emitted yellow and white sparks. The time taken to propagate over 100 mm was 43 seconds.

Under the conditions of this study, the test material is classified as category 1 in accordance with EU criteria.

Endpoint:
substances / mixtures which in contact with water emit flammable gases
Type of information:
experimental study
Adequacy of study:
key study
Study period:
17 January 2017 to 26 January 2017
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Reason / purpose for cross-reference:
reference to same study
Reason / purpose for cross-reference:
reference to same study
Qualifier:
according to guideline
Guideline:
EU Method A.12 (Flammability (Contact with Water))
Version / remarks:
2008
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Specific details on test material used for the study:
SOURCE OF TEST MATERIAL
- Batch No.of test material: 16-9362
- Expiration date of the lot/batch: 07 November 2017

STABILITY AND STORAGE CONDITIONS OF TEST MATERIAL
-Storage conditions: Room temperature, under nitrogen in the dark

Test procedure:
step 1
Identity of evolved gas:
not applicable as no gas evolved
Remarks on result:
no reaction with water observed
Test procedure:
step 2
Identity of evolved gas:
not applicable as no gas evolved
Remarks on result:
no reaction with water observed
Test procedure:
step 3
Identity of evolved gas:
not applicable as no gas evolved
Remarks on result:
no reaction with water observed
Test procedure:
step 4
Identity of evolved gas:
not applicable as no gas evolved
Remarks on result:
no reaction with water observed
Interpretation of results:
other: Not hazardous in accordance with EU criteria
Conclusions:
The test material has been determined to be non-hazardous as no gases were evolved in any of the four steps.
Executive summary:

The flammability of the test material in contact with water was determined in accordance with the standardised guideline EU Method A.12 under GLP conditions.

For step 1, the test material was transferred to a trough containing high quality water. The test material was observed over a 3 minute period and a record made of any evolution of gas. No signs of gas evolution or spontaneous ignition.

For step 2, the test material was transferred to the centre of a filter paper which was floating on high quality water. The test material was observed over a 3 minute period and a record made of any evolution of gas. No signs of gas evolution or spontaneous ignition.

For step 3, a pile of the test material was formed and an indentation made in the top. A few drops of high quality water were added to the indentation. The test material was observed over a 3 minute period and a record made of any evolution of gas. No signs of gas evolution or spontaneous ignition.

For step 4, 10 g of test material was placed into a conical flask, high quality water was released from the dropping funnel into the flask and any gas evolved collected in a gas-tight syringe. The rate of evolution was recorded at hourly intervals over a 7 hour period. The test was performed at atmospheric pressure, in triplicate. No gas evolved.

Under the conditions of this study the test material has been determined to be non-hazardous as no gases were evolved in any of the four steps.

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
Justification for type of information:
JUSTIFICATION FOR DATA WAIVING
In accordance with point 1 of Annex XI, it is considered justified to omit the testing for pyrophoric properties. Testing does not appear scientifically necessary as experience in use and experience of handling the substance indicates that it does not possess pyrophoric properties.

Description of key information

Flammable solids

Under the conditions of this study, the test material is classified as category 1 in accordance with EU criteria.

Flammability in contact with water

Under the conditions of this study the test material has been determined to be non-hazardous as no gases were evolved in any of the four steps.

Key value for chemical safety assessment

Flammability:
flammable

Additional information

Flammable solids

The flammability of the test material was determined in accordance with the standardised guideline UN Method N.1 using the burning rate test under GLP conditions. The study was awarded a reliability score of 1 in accordance with the criteria set forth by Klimisch et al. (1997).

For the preliminary screening test a mould was loosely filled with test material, a non-combustible, non-porous board was placed onto the mould which was then inverted. The mould was removed and an air-rich Bunsen burner flame applied to one end of the pile. The test material burned with an orange glow which emitted orange, yellow and white sparks. The time taken to propagate over 200mm was 1 minute 17 seconds.

For the burning rate test, a mould was loosely filled with test material. The mould was dropped three times from a height of approximately 2 cm onto a solid surface. A non-combustible, non-porous board was placed on top of the mould which was then inverted. The mould was removed and an air-rich Bunsen burner flame used to ignite the pile.The test material burned with an orange glow which emitted yellow and white sparks. The time taken to propagate over 100mm was 43 seconds.

Under the conditions of this study, the test material is classified as category 1 in accordance with EU criteria.

Flammability in contact with water

The flammability of the test material in contact with water was determined in accordance with the standardised guideline EU Method A.12 under GLP conditions. The study was awarded a reliability score of 1 in accordance with the criteria set forth by Klimisch et al. (1997).

For step 1, the test material was transferred to a trough containing high quality water. The test material was observed over a 3 minute period and a record made of any evolution of gas.No signs of gas evolution or spontaneous ignition.

For step 2, the test material was transferred to the centre of a filter paper which was floating on high quality water. The test material was observed over a 3 minute period and a record made of any evolution of gas.No signs of gas evolution or spontaneous ignition.

For step 3, a pile of the test material was formed and an indentation made in the top. A few drops of high quality water were added to the indentation. The test material was observed over a 3 minute period and a record made of any evolution of gas.No signs of gas evolution or spontaneous ignition.

For step 4, 10 g of test material was placed into a conical flask, high quality water was released from the dropping funnel into the flask and any gas evolved collected in a gas-tight syringe. The rate of evolution was recorded at hourly intervals over a 7 hour period. The test was performed at atmospheric pressure, in triplicate.No gas evolved.

Under the conditions of this study the test material has been determined to be non-hazardous as no gases were evolved in any of the four steps.

Pyrophoricity

In accordance with point 1 of Annex XI, it is considered justified to omit the testing for pyrophoric properties. Testing does not appear scientifically necessary as experience in use and experience of handling the substance indicates that it does not possess pyrophoric properties.

Justification for classification or non-classification

In accordance with the criteria for classification as defined in Annex I, Regulation (EC) No. 1272/2008, the substance is classified as a flammable solid (category 1) with the hazard phrase H228: Flammable solid..