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EC number: 947-876-9 | CAS number: -
In the investigation of self-ignition in the Grewer Oven for the pure test item, showed a self-heating starting at a temperature of 130 °C that led to a maximum temperature of approx. 600 °C (corresponding oven temperature 265 °C). After the measurement a black residue remained in the basket.
For the test item in mixture with Kieselguhr a self-heating starting at a temperature of 130 °C was observed that led to a maximum temperature of approx. 620 °C (corresponding oven temperature 315 °C).
Table 1 summarizes the results of the Grewer Oven experiment.
Table 1: 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 mixturewith Kieselguhr (1:1)
The pure test item Black DB indicated a self-heating starting at a temperature of 130 °C that led to a maximum temperature of approx. 600 °C (corresponding oven temperature 265 °C).
On the basis of the results of the screening test on the self-ignition in the Grewer Oven a classification of the test item as self-heating substance cannot be excluded. Further tests according to UN Test N.4 (Bowes-Cameron-Cage Test) have to be performed for the classification.
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