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Physical & Chemical properties

Auto flammability

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Endpoint:
relative self-ignition temperature (solids)
Type of information:
experimental study
Adequacy of study:
key study
Study period:
11 February 1999 to 16 April 1999
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
EU Method A.16 (Relative Self-Ignition Temperature for Solids)
Deviations:
not specified
GLP compliance:
yes
Key result
Remarks on result:
no self-ignition observed up to the melting point

There was no exothermic reaction of the test material below its melting point at approximately 90 to 100 °C.

Conclusions:
Under the conditions of the study, there was no self-ignition temperature prior to melting at 90 to 100 °C.
Executive summary:

The autoflammability of the test material was assessed according to EU Method A.16 and in compliance with GLP.

A mesh cube was filled with test material tapping gently and adding more until the cube was full. The cube was then suspended in the centre of the furnace at room temperature and a thermocouple placed in the centre of the cube. Another thermocouple was placed midway between the furnace wall and the cube in order to monitor the furnace temperature. The temperature of the furnace and sample were then continuously recorded while the temperature of the furnace was increased at a rate of 0.5 °C/min to 400 °C.

There was no exothermic reaction of the test material below its melting point at approximately 90 to 100 °C.

Under the conditions of the study, there was no self-ignition temperature prior to melting at 90 to 100 °C.

Endpoint:
relative self-ignition temperature (solids)
Type of information:
experimental study
Adequacy of study:
supporting study
Study period:
30 September to 01 December 1994
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
guideline study without detailed documentation
Qualifier:
according to guideline
Guideline:
EU Method A.16 (Relative Self-Ignition Temperature for Solids)
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Key result
Remarks on result:
no self ignition observed under the test conditions

Under test conditions no self-heating was observed. At the end of the test the wire basket was empty.

Conclusions:
Under the conditions of the study no self-heating was observed.
Executive summary:

The autoflammability of the test material was assessed according to EU Method A.16 and in compliance with GLP

A certain volume of the test material under test is placed in an oven at room temperature; the temperature/time curve is recorded while the temperature of the oven is increased to 400 °C at a rate of 0.5 ºC/min.

Under test conditions no self-heating was observed. At the end of the test the wire basket was empty.

Under the conditions of the study no self-heating was observed.

Endpoint:
relative self-ignition temperature (solids)
Type of information:
experimental study
Adequacy of study:
key study
Study period:
11 April 1990 to 20 August 1990.
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
EU Method A.16 (Relative Self-Ignition Temperature for Solids)
Deviations:
no
GLP compliance:
yes
Key result
Remarks on result:
no self ignition observed under the test conditions

No ignition was detected below the upper temperature limit of the melting endotherm of the test material. The test material is not auto-flammable.

Conclusions:
Under the conditions of the study the test material is not auto-flammable.
Executive summary:

The auto-flammability of the test material was assessed according to EEC method A16 and in compliance with GLP.

The test material was subjected to the auto-flammability of solids test. No ignition was detected below the upper temperature limit of the melting endotherm of the test material.

Under the conditions of the study the test material is not auto-flammable.

Description of key information

Combs (2000)

Under the conditions of the study, there was no self-ignition temperature prior to melting at 90 to 100 °C.

 

O'Connor (1990)

Under the conditions of the study the test material is not auto-flammable.

Supporting Study: Löffler (1994)

Under the conditions of the study no self-heating was observed.

Key value for chemical safety assessment

Additional information

O'Connor (1990)

The auto-flammability of the test material was assessed according to EEC method A16 and in compliance with GLP. The study was awarded a reliability score of 1 in accordance with the criteria set forth by Klimisch et al. (1997).

The test material was subjected to the auto-flammability of solids test. No ignition was detected below the upper temperature limit of the melting endotherm of the test material.

Under the conditions of the study the test material is not auto-flammable.

Combs (2000)

The autoflammability of the test material was assessed according to EU Method A.16 and in compliance with GLP. The study was awarded a reliability score of 1 in accordance with the criteria set forth by Klimisch et al. (1997).

A mesh cube was filled with test material tapping gently and adding more until the cube was full.The cube was then suspended in the centre of the furnace at room temperature and a thermocouple placed in the centre of the cube. Another thermocouple was placed midway between the furnace wall and the cube in order to monitor the furnace temperature.The temperature of the furnace and sample were then continuously recorded while the temperature of the furnace was increased at a rate of 0.5 °C/min to 400 °C.

There was no exothermic reaction of the test material below its melting point at approximately 90 to 100 °C.

Under the conditions of the study, there was no self-ignition temperature prior to melting at 90 to 100 °C.

Supporting Study: Löffler (1994)

The autoflammability of the test material was assessed according to EU Method A.16 and in compliance with GLP. The study was awarded a reliability score of 2 in accordance with the criteria set forth by Klimisch et al. (1997).

A certain volume of the test material under test is placed in an oven at room temperature; the temperature/time curve is recorded while the temperature of the oven is increased to 400 °C at a rate of 0.5 ºC/min.

Under test conditions no self-heating was observed. At the end of the test the wire basket was empty.

Under the conditions of the study no self-heating was observed.