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Reference
Endpoint:
relative self-ignition temperature (solids)
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2018-06-26 to 2018-08-02
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
other: UN Recommendations on the TRANSPORT OF DANGEROUS GOODS: Manual of Tests and Criteria, Rev. 6 (2015)
Version / remarks:
2015
Deviations:
no
Qualifier:
according to
Guideline:
other: VDI 2263 (1990), sheet 1, Grewer Oven
Version / remarks:
1990
Deviations:
no
GLP compliance:
yes (incl. certificate)
Key result
Remarks on result:
no self-ignition observed up to the melting point

In the investigation of self-ignition in the Grewer Oven the pure test item showed an endothermic effect in the temperature range of 210 - 240 °C, which can be assigned to the melting of the test item. No further thermal effects could be observed up to the maximum test temperature of 412 °C. After the test the wire basket was empty.

Conclusions:
The pure test indicated no self-heating at atmospheric pressure up to its melting point starting at a temperature of approx. 210 °C.
According to this result of the tests on the self-ignition in the Grewer Oven the test item is classified as follows:
UN Transport Regulation: The test item is not classified as self-heating substance in class 4, division 4.2 according to the UN Transport Regulation.
GHS/CLP Regulation EC 1272/2008 Annex 1: 2.11: The test item is not classified as self-heating substance according to GHS/CLP Regulation EC 1272/2008 Annex 1: 2.11, respectively.

Description of key information

The pure test indicated no self-heating at atmospheric pressure up to its melting point starting at a temperature of approx. 210 °C.

According to this result of the tests on the self-ignition in the Grewer Oven the test item is classified as follows:

UN Transport Regulation: The test item is not classified as self-heating substance in class 4, division 4.2 according to the UN Transport Regulation.

GHS/CLP Regulation EC 1272/2008 Annex 1: 2.11: The test item is not classified as self-heating substance according to GHS/CLP Regulation EC 1272/2008 Annex 1: 2.11, respectively.

Key value for chemical safety assessment

Additional information