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Link to relevant study record(s)

Reference
Endpoint:
flammable solids
Type of information:
experimental study
Adequacy of study:
key study
Study period:
1 August 2016
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
test procedure in accordance with generally accepted scientific standards and described in sufficient detail
Qualifier:
equivalent or similar to
Guideline:
EU Method A.10 (Flammability (Solids))
Version / remarks:
Test guideline not explicitly mentioned in the study report. The description of the test method in the report complies with the requirements of Test Method A.10 in the EU test method regulation 440/2008
Deviations:
not specified
GLP compliance:
no
Test procedure:
burning rate test: preliminary screening test
Remarks:
over 200 mm
Burning time:
ca. 10 s
Remarks on result:
other:
Remarks:
The sample discoloured to black and ignited producing a medium size orange flame which propagated along the sample train
Key result
Test procedure:
burning rate test with wetted zone
Burning time:
>= 8 - <= 12 s
Remarks on result:
flame passes the wetted zone

The table below presents the full results of the flammability testing, including the preliminary screening test and the 6 repetitions of the full test.

 Test No  Length (mm)  Burning time (s)  Comments
 Preliminary screening test  200  10

The sample discoloured to black and ignited producing a

medium size orange flame which propagated along the

sample train

 1

 100

 11

Propagating combustion <45 seconds that passes the

wetted zone. Sample discoloured to black and ignited

producing a medium size orange flame which propagated

along the sample train

 2

 100

 8

Propagating combustion <45 seconds that passes the

wetted zone. Sample discoloured to black and ignited

producing a medium size orange flame which propagated

along the sample train

 3

 100

 9

Propagating combustion <45 seconds that passes the

wetted zone. Sample discoloured to black and ignited

producing a medium size orange flame which propagated

along the sample train

 4

 100

 12

Propagating combustion <45 seconds that passes the

wetted zone. Sample discoloured to black and ignited

producing a medium size orange flame which propagated

along the sample train

 5

 100

 10

Propagating combustion <45 seconds that passes the

wetted zone. Sample discoloured to black and ignited

producing a medium size orange flame which propagated

along the sample train 

 6

 100

 9

Propagating combustion <45 seconds that passes the

wetted zone. Sample discoloured to black and ignited

producing a medium size orange flame which propagated

along the sample train 

Interpretation of results:
Category 1 (flammable solids) based on GHS criteria
Conclusions:
The sample propagated combustion in less than 45 seconds, passing the wetted zone. As such, according to table 2.7.1 of Annex I of CLP, the substance should be classified as a Category 1 flammable solid. The substance is also classified as highly flammable, Division 4.1, and assigned to Packing Group II for transport purposes.
Executive summary:

The burning rate of the sample was measured according to a method similar to that described in Method A.10 of the European Test Method Regulation (EC) 440/2008. The results of the main test showed that the sample burned over 100 mm, passing the wetted zone and the orange flame produced propagated along the sample train. This was observed in all six repetitions of the main test. Therefore, the substance fulfils the criteria for classification as a Category 1 flammable solid according to CLP/GHS. Additionally, it is classified as highly flammable, Division 4.1 and assigned Packing Group II for transport purposes.

Description of key information

The burning rate of the sample was measured according to a method similar to that described in Method A.10 of the European Test Method Regulation (EC) 440/2008. The results of the main test showed that the sample burned over 100 mm, passing the wetted zone and the orange flame produced propagated along the sample train. This was observed in all six repetitions of the main test. Therefore, the substance fulfils the criteria for classification as a Category 1 flammable solid according to CLP/GHS. Additionally, it is classified as highly flammable, Division 4.1 and assigned Packing Group II for transport purposes.

Key value for chemical safety assessment

Flammability:
flammable

Additional information

Justification for classification or non-classification

The burning rate of the sample was measured according to a method similar to that described in Method A.10 of the European Test Method Regulation (EC) 440/2008. The results of the main test showed that the sample burned over 100 mm, passing the wetted zone and the orange flame produced propagated along the sample train. This was observed in all six repetitions of the main test. Therefore, the substance fulfils the criteria for classification as a Category 1 flammable solid according to CLP/GHS. Additionally, it is classified as highly flammable, Division 4.1 and assigned Packing Group II for transport purposes.