Registration Dossier

Administrative data

Endpoint:
relative self-ignition temperature (solids)
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2003-01-14
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
test procedure in accordance with national standard methods with acceptable restrictions

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2011
Report Date:
2011

Materials and methods

Test guideline
Qualifier:
no guideline followed
Principles of method if other than guideline:
Deposited dust: This test determines the ignition temperature of a dry product on a hot surface. For a description of the method see "any other information on materials and methods".
GLP compliance:
not specified

Test material

Reference
Name:
Unnamed
Type:
Constituent
Type:
impurity
Type:
impurity
Test material form:
solid: bulk

Results and discussion

Relative self-ignition temperature (solids)
Key result
Relative self-ignition temperature:
> 360 °C
Remarks on result:
no self ignition observed under the test conditions

Any other information on results incl. tables

At the highest tested temperature (360°C) there was no reaction observed for deposited MDI-Urone dust.

Applicant's summary and conclusion

Conclusions:
No auto-ignition of deposited MDI-Urone dust occurred on surfaces until 360°C.
Executive summary:

The test determines the ignition temperature of a deposited dusty test substance on hot surfaces. The test is conducted according to the test protocol. The surface area of the substance is increased intentionally in this test by preparing the test substance accordingly to simulate the deposited dusty properties. The ignition temperature of deposited dusty test material is expected to be lower than the ignition temperature of the solid with larger particle diameters. At the hottest temperature in this test (360°C) there was no reaction observed for deposited MDI-Urone dust.