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EC number: 947-741-4
CAS number: -
In the investigation of self-ignition in the Grewer Oven for the
pure test item an endothermic effect was observed in the temperature
range of 200 – 260 °C. After approx. 270 °C the temperature of the test
item was permanent over the reference temperature (6 – 10 K) up to the
maximum temperature of 420 °C (410 °C reference temperature). This
effect is explained to the empty basket. After the measurement the test
item was empty.
For the test item in mixture with Kieselguhr neither endothermic
nor exothermic effect was observed up to maximum test temperature of 410
Results of the screening test for self-ignition in the Grewer-Oven
Onset self-ignition [°C]
Maximum temperature [°C]
Pure test item
Test item in mixture with Kieselguhr (1:1)
The pure test item indicated no self-ignition at atmospheric pressure up
to the maximum test temperature of 410 °C.
UN Transport Regulation: The test item has not to be classified as
self-heating substance in class 4, division 4.2 according to the
UN Transport Regulation.
GHS / CLP Regulation
Annex 1: 2.11: The test item has not to be classified as self-heating
substance according to GHS/CLP Regulation EC 1272/2008 Annex 1: 2.11.
No self-ignition up to 410 °C (Grewer oven test).
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