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Reference
Endpoint:
auto-ignition temperature (liquids)
Type of information:
experimental study
Adequacy of study:
key study
Study period:
13 June 2012-15 June 2012
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
EU Method A.15 (Auto-Ignition Temperature (Liquids and Gases))
Version / remarks:
(2008)
Deviations:
no
Qualifier:
according to guideline
Guideline:
other: DIN Guide 51794: "Determining the Ignition Temperature of Petroleum Products" (2003)
Deviations:
no
Qualifier:
according to guideline
Guideline:
other: IEC standard 79-4: "Electrical Apparatus for Explosive Gas Atmospheres, Part 4, Method of Test for Ignition Temperature" ( 1975)
Deviations:
no
GLP compliance:
yes
Auto-ignition temperature:
295 °C
Atm. press.:
> 1 013.4 - < 1 021.1 hPa
Remarks on result:
other: The lowest temperature at which ignition occurred was 297°C. This temperature was rounded off to the nearest multiple of 5°C giving the auto-ignition temperature of the substance.

Table: Auto-ignition temperature measurements

 

Test

Volume
[μl]

Auto-ignition
temperature
[°C]

Ignition delay

[s]

Colour of the flame

Minimum auto-ignition
temperature
[°C]

 

 

 

 

 

 

1

70

316

9

orange/blue

297

 

100

311

9

orange/blue

 

 

200

300

26

orange/blue

 

 

350

297

12

orange/blue

 

 

500

310

10

orange/blue

 

 

 

 

 

 

 

2

80

314

9

orange/blue

300

 

300

300

13

orange/blue

 

 

450

313

8

orange/blue

 

 

 

 

 

 

 

3

90

313

15

orange/blue

301

 

250

301

17

orange/blue

 

 

475

312

9

orange/blue

 

 

Conclusions:
The auto-ignition temperature of the substance was determined to be 295°C at 1013.4 – 1021.1 hPa. The test was performed in accordance with EC A.15, DIN 51794 and IEC 79-4 and according to the principles of GLP.

Description of key information

295°C at 1013.4 – 1021.1 hPa

Key value for chemical safety assessment

Additional information

An auto-ignition temperature of 295°C was determined in a study conducted according to EC Method A.15, DIN 51794 and IEC 79-4. The result is considered to be reliable.