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Link to relevant study record(s)

Reference
Endpoint:
explosive properties of explosives
Type of information:
experimental study
Adequacy of study:
key study
Study period:
20-22 June 2017
Reliability:
1 (reliable without restriction)
Justification for type of information:
The study was conducted according to an internationally recognised method, and under GLP. The substance is considered to be adequately characterised. Therefore full validation applies.
Qualifier:
according to guideline
Guideline:
UN Manual of Tests and Criteria: Part I: Classification procedures, test methods and criteria relating to explosives of Class 1
Version / remarks:
UN Handbook “Recommendations on the Transport of Dangerous Goods; Manual of Tests and Criteria”; sixth revised edition, UN, 2015, Section 20.2.1, 20.3.3.3 and Apendix 6 / Screening test
Deviations:
no
Qualifier:
according to guideline
Guideline:
other: OECD Guidelines for the Testing of Chemicals, Method No. 113, adopted 12. May 1981: “Screening Test for Thermal Stability and Stability in Air”
Version / remarks:
1981
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Remarks:
Date of inspection: 13-14 October 2014; Date of signature: 8 April 2015
Key result
Parameter:
other: DSC screening test
Remarks on result:
negative (not further specified)
Remarks:
no significant exothermic event was observed during the DSC run

Calibration :

The measurement of indium after calibration met the validity criteria.

Results of DSC measurement:

Table 4.14.1  Values DSC Test Item

Event

Start of effect [°C]

Energy [J/g]

-

No Event

No Event

Table 4.14.2

   Observations

Mass test item

Mass crucible (before measurement):

Mass crucible (after measurement):

Observations

1.12 mg

617.66 mg

617.37 mg

After the test the crucible was visually unchanged. The crucible was opened, a black residue was observed, the inside sealed gold ring was black discoloured.

Finally, during the DSC run (from 0 to 520 °C) no significant exothermic event was observed.

The measurement of indium after calibration met the validity criteria. Therefore, the result of the study is considered valid.

Interpretation of results:
GHS criteria not met
Conclusions:
A screening via DSC (differential scanning calorimetry) was conducted.
During the DSC run (from 0 to 520 °C) no significant exothermic event was observed. The acceptance procedures for Class 1 explosives need not to be applied.
No additional testing is required. The substance shall not be classified as explosive according to Regulation (EC) N°1272/2008 (CLP).

Executive summary:

The thermal stability of the test substance was tested with Differential Scanning Calorimetry, in accordance with conditions recommended in UN MTC screening procedure/OECD guideline. Up to the maximum test temperature of 520°C, no significant exothermic event was observed.

Description of key information

DSC screening test: no significant exothermic event was observed up to 520°C.

Key value for chemical safety assessment

Explosiveness:
non explosive

Additional information

A fully reliable experimental study, conducted in accordance with conditions recommended in UN MTC screening procedures/OECD guideline, and under GLP, is available. It is considered as a key study. The result is retained as key data.

No further testing is required.

Justification for classification or non-classification

During the DSC run (from 0 to 520 °C) no significant exothermic event was observed. The acceptance procedures for Class 1 explosives need not to be applied.

No additional testing is required. The substance shall not be classified as explosive according to Regulation (EC) N°1272/2008 (CLP).