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EC number: 928-779-0
CAS number: -
In the investigation of self-ignition
in the Grewer Oven for the pure test item a small exothermic effect
starts at approx. 180 °C and turns into an endothermic process at 200
°C, which can be assigned to the melting of the test item. After this
the temperature of the test item was permanent over the reference
temperature (5 – 10 K) until the maximum temperature of 425 °C (415 °C
reference). This effect is explained to the changed physical condition
of the test item. After the measurement the test item in the basket was
changed to bloated black flakes.
For the test item in mixture with
Kieselguhr an exothermic effect was observed at approximately 180 °C and
230 °C, which led to a maximum temperature of 630 °C.Table
1summarizes the results of the Grewer Oven experiment
Results of the screening test for self-ignition in the Gewer-Oven
Onset self-ignition / °C
Maximum temperature / °C
Pure test item
Test item in mixturewith Kieselguhr (1:1)
180 / 230
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