Registration Dossier

Administrative data

Endpoint:
flammability
Type of information:
experimental study
Adequacy of study:
key study
Study period:
23.01.2008 to 15.05.2008
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: GLP study report

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2008
Report Date:
2008

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to
Guideline:
EU Method A.10 (Flammability (Solids))
Deviations:
no
Qualifier:
according to
Guideline:
EU Method A.12 (Flammability (Contact with Water))
Deviations:
no
Qualifier:
according to
Guideline:
EU Method A.13 (Pyrophoric Properties of Solids and Liquids)
Deviations:
no
GLP compliance:
yes (incl. certificate)

Test material

Reference
Name:
Unnamed
Type:
Constituent
Test material form:
solid: particulate/powder
Remarks:
migrated information: powder

Results and discussion

Flammable solids
Test procedure:
burning time (test type not further specified)
Remarks:
or specified in description of method (migrated information)
Remarks on result:
other: DCM is considered not pyrophoric.
Pyrophoric solids
Test procedure:
ignition time on contact with air
Remarks:
Ignition on contact with air refers to either Pyrophoric solids or Pyrophoric liquids depending on physical state (migrated information).
Remarks on result:
other: DCM is considered not highly flammable.
Pyrophoric liquids
Test procedure:
ignition time on contact with air
Remarks:
Ignition on contact with air refers to either Pyrophoric solids or Pyrophoric liquids depending on physical state (migrated information).
Remarks on result:
other: DCM is considered not highly flammable.
Substances / mixtures which in contact with water emit flammable gases
Remarks on result:
other: DCM is not highly flammable (in contact with water).

Applicant's summary and conclusion

Conclusions:
Flammability:
The flame of a gas burner could ignite the test substance pile. The test substance burned with a yellow flame and turned into a black charred residue. The test substance melted and emitted yellow sparks and black smoke was observed. After removal of the ignition source, propagation of combustionwith flame was observed. The burning time over a distance of 200 mm was 239 seconds. Based on the result of the preliminary test, the main study was performed. During the main study the burning time of the test substance over a distance of 100 mm was 152, 115, 128, 188, 135 and 132
seconds, respectively. Because the fastest burning time over 100 mm was > 45 seconds, DCM is considered not highly flammable.

Flammability in contact with water:
In none of the tests 1 - 3 as described above, the evolution of a gas was observed. Also, during the performance of test 4 (in triplicate), no
evolution of a gas was observed in either test. No spontaneous ignition took place in any step of the test procedure and there was no evolution of
(flammable) gas. In conclusion, DCM is not highly flammable (in contact with water).

Pyrophoric properties:
In none of the six tests, spontaneous ignition of the test substance occurred during dropping from about 1 meter height or within five minutes of
settling. Based on these results, DCM is considered not pyrophoric.