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Physical & Chemical properties

Flammability

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Reference
Endpoint:
flammable solids
Type of information:
experimental study
Adequacy of study:
key study
Study period:
25 April 2007 to 23 August 2007
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Reason / purpose:
reference to same study
Qualifier:
according to
Guideline:
EU Method A.10 (Flammability (Solids))
Deviations:
no
GLP compliance:
yes (incl. certificate)
Key result
Test procedure:
burning rate test: preliminary screening test
Burning time:
0 s
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
Remarks:
substance could not be ignited

The test item could not be ignited with a flame. Therefore the main test was unnecessary.

Interpretation of results:
not classified based on GHS criteria
Conclusions:
The test item is not a readily combustible solid in the sense of the consolidated version of Council Directive 67/548/EEC Annex V (Council Directive 92/69/EEC), Method A.10.
Executive summary:

The purpose of this study was the determination of the flammability (solids) of the test item according to the consolidated version of Council Directive 67/548/EEC Annex V (Council Directive 92/69/EEC), Part A: Methods for the determination of physico-chemical properties, A.10. Flammability (solids). The study was performed in accordance with the Principles of Good Laboratory Practice (GLP) and reported with a valid GLP certificate.

 

The test item in its commercial form was loosely filled into a mould. The mould is made of metal, has a length of 250 mm and a triangular cross section with an inner height of 10 mm and an inner width of 20 mm. On both sides of the mould in a longitudinal direction two metal sheets are mounted as lateral limitations which project 2 mm beyond the upper edge of the triangular cross section. The mould was then dropped three times from a height of 2cm onto a solid surface. If necessary the mould was then filled up again. Then the lateral limitations were removed and the excess substance was scraped off. A non-combustible and non-porous plate was placed on top of the mould, the apparatus was inverted and the mould was removed.

As ignition source a flame was used to ignite the pile at one end.

Preliminary test: One end of the pile was ignited. When the pile burned over a distance of 200 mm during 4 minutes, the main test has to be performed. If there was no ignition of the test item after 2 minutes of contact with the flame or the pile burned slower than 200 mm during 4 minutes, the main test is unnecessary.

 

The test item could not be ignited with a flame. Therefore the main test was unnecessary.

 

The test item is not a readily combustible solid in the sense of the consolidated version of Council Directive 67/548/EEC Annex V (Council Directive 92/69/EEC), Method A.10.

Description of key information

The test item could not be ignited with a flame. Therefore the main test was unnecessary.

The test item is not a readily combustible solid in the sense of the consolidated version of Council Directive 67/548/EEC Annex V (Council Directive 92/69/EEC), Method A.10.

Key value for chemical safety assessment

Flammability:
non flammable

Additional information

The flammability (solids) of the test item was determined according to method A.10. Flammability (solids). The test item was loosely filled into a mould. The mould is made of metal, has a length of 250 mm and a triangular cross section with an inner height of 10 mm and an inner width of 20 mm. On both sides of the mould in a longitudinal direction two metal sheets are mounted as lateral limitations which project 2 mm beyond the upper edge of the triangular cross section. The mould was then dropped three times from a height of 2 cm onto a solid surface. If necessary the mould was then filled up again. Then the lateral limitations were removed and the excess substance was scraped off. A non-combustible and non-porous plate was placed on top of the mould, the apparatus was inverted and the mould was removed.

As ignition source a flame was used to ignite the pile at one end.

Preliminary test: One end of the pile was ignited. When the pile burned over a distance of 200 mm during 4 minutes, the main test has to be performed. If there was no ignition of the test item after 2 minutes of contact with the flame or the pile burned slower than 200 mm during 4 minutes, the main test is unnecessary.

The test item could not be ignited with a flame. Therefore the main test was unnecessary.

The test item is not a readily combustible solid in the sense of the consolidated version of Council Directive 67/548/EEC Annex V (Council Directive 92/69/EEC), Method A.10.

Justification for classification or non-classification

The test item is not a readily combustible solid in the sense of the consolidated version of Council Directive 67/548/EEC Annex V (Council Directive 92/69/EEC), Method A.10.