Registration Dossier

Administrative data

Endpoint:
explosiveness, other
Type of information:
experimental study
Adequacy of study:
key study
Study period:
28/03/2018
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2018
Report Date:
2018

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to
Guideline:
UN Manual of Tests and Criteria: Part I: Classification procedures, test methods and criteria relating to explosives of Class 1
Qualifier:
according to
Guideline:
other: OECD test guideline 113 (1981): Thermal Stability
GLP compliance:
yes (incl. certificate)

Test material

Reference
Name:
Unnamed
Type:
Constituent
Type:
Constituent
Type:
impurity
Test material form:
solid: bulk
Specific details on test material used for the study:
Batch No.: C000344287
Appearance: Dark grey powder

Results and discussion

Small-scale preliminary tests
Key result
Parameter:
other: DSC-measurement up to 500°C in a closed glass crucible under nitrogen
Value:
30
Remarks on result:
not thermal sensitive if heated under defined confinement
Remarks:
In the DSC-measurement the energy of the exothermic decomposition of the test item ZrO was below the threshold of 500 J/g (absolute value of the exothermic energy).

Any other information on results incl. tables

In the temperature range of 310 – 350 °C a small exothermic effect can be observed, with an average decomposition energy of 30 J/g.

Due to the decomposition energy being below the threshold of 500 J/g (absolute value of the exothermic energy), further tests for explosive properties did not have to be performed.

Applicant's summary and conclusion

Interpretation of results:
GHS criteria not met
Conclusions:
According to the results of the test on thermal stability, the test item is classified as following:
UN Transport Regulation: The test item does not have to be classified as explosive substance in class 1 according to the UN Transport Regulation.
GHS (CLP Regulation EC 1272/2008: Annex 1: 2.1): The test item does not have to be classified as explosive substance according to GHS or CLP Regulation EC 1272/2008 Annex 1: 2.1, respectively.
Regulation EC No. 440/2008 and Directive 67/548/EEC:The test item has no explosive properties according to the Regulation EC No. 440/2008 Method A.14. Explosive Properties.
Executive summary:

In the DSC-measurement the energy of the exothermic decomposition of the test item ZrO was < 500 J/g (absolute value of the exothermic energy). Therefore, further tests for explosive properties had not to be performed.

According to the results of the test on thermal stability, the test item is classified as following:

UN Transport Regulation: The test item does not have to be classified as explosive substance in class 1 according to the UN Transport Regulation.

GHS (CLP Regulation EC 1272/2008: Annex 1: 2.1): The test item does not have to be classified as explosive substance according to GHS or CLP Regulation EC 1272/2008 Annex 1: 2.1, respectively.

Regulation EC No. 440/2008 and Directive 67/548/EEC:The test item has no explosive properties according to the Regulation EC No. 440/2008 Method A.14. Explosive Properties.