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Auto flammability

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Reference
Endpoint:
auto-ignition temperature (liquids)
Type of information:
experimental study
Adequacy of study:
key study
Study period:
30 March 2020 to 29 April 2020
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
DIN 51794 (Testing of mineral oil hydrocarbons - Determination of ignition temperature)
Version / remarks:
2003
Deviations:
no
Qualifier:
according to guideline
Guideline:
EU Method A.15 (Auto-Ignition Temperature (Liquids and Gases))
Version / remarks:
2016
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Remarks:
Date of Inspection: 10-17 December 2019; Date of Signature on Certificate: 24 February 2020
Key result
Auto-ignition temperature:
400 °C
Atm. press.:
1 017 hPa

Preliminary Test

The estimated auto-ignition temperature was 410°C.

 

Main Study

The results of the main study on the determination of the auto-ignition temperature of the test item are given in Table 1.

Ignition of the test item within 5 minutes after introduction was observed with each sample volume and with each test a minimum auto-ignition temperature was obtained. The maximum deviation between the three values was < 20°C. According to the guidelines, no further testing was required.

The lowest temperature at which ignition of the test item occurred was 400°C. This temperature was a multiple of 5°C and therefore given as the auto-ignition temperature of the test item.

Table 1          
Auto-ignition Temperature of the Test Item

Test

Volume


[μL]

Auto-ignition
temperature

[°C]

Ignition delay



[s]

Colour of the flame

Minimum auto-ignition
temperature
[°C]

1

70

416

10

orange/blue

405

 

150

405

10

orange/blue

 

 

250

406

5

orange/blue

 

2

125

409

11

orange/blue

400

 

350

400

10

orange/blue

 

 

450

407

8

orange/blue

 

3

100

416

9

orange/blue

401

 

200

401

9

orange/blue

 

 

400

406

10

orange/blue

 

Conclusions:
The test item is auto-ignitable with an auto-ignition temperature of 400°C
Executive summary:

Commercially available auto-ignition temperature apparatus was used for the determination of the degree of auto-ignitability of the test item.

The test item is auto-ignitable with an auto-ignition temperature of 400°C.

The atmospheric pressure was 1017 hPa.

Description of key information

400°C; EC A.15; Jovic Madzarevic, Z. (2020)

Key value for chemical safety assessment

Autoflammability / Self-ignition temperature at 101 325 Pa:
400 °C

Additional information