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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:
01 September - 07 December 2016
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Remarks:
Study conducted in accordance with international guidelines and in accordance with GLP. All relevant validity criteria were met.
Qualifier:
according to guideline
Guideline:
EU Method A.15 (Auto-Ignition Temperature (Liquids and Gases))
Deviations:
no
Qualifier:
according to guideline
Guideline:
DIN 51794 (Testing of mineral oil hydrocarbons - Determination of ignition temperature)
Deviations:
no
Qualifier:
according to guideline
Guideline:
IEC 60079-4 (Electrical apparatus for explosive gas atmospheres. Part 4: Method of test for ignition temperature)
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Specific details on test material used for the study:
STABILITY AND STORAGE CONDITIONS OF TEST MATERIAL
- Storage condition of test material: Room temperature
- Stability under test conditions: Assumed stable. Stability at higher temperatures not availbale.
- Solubility and stability of the test substance in the solvent/vehicle: N/A
- Reactivity of the test substance with the solvent/vehicle of the cell culture medium: N/A
Key result
Auto-ignition temperature:
220 °C
Atm. press.:
>= 1 021.4 - <= 1 028.1 hPa

Prelim Test

The estimated auto-ignition temperature was 245 °C.

Main Test

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 < 10 °C. According to the guidelines, no further testing was required.

The lowest temperature at which ignition of the test item occurred was 224 °C. This temperature was rounded down to the nearest multiple of 5 °C giving an auto-ignition temperature of the test item of 220 °C.

Table 2:       Main test auto-ignition temperature of test substance

Test

Volume


[μL]

Auto-ignition
temperature

[°C]

Ignition delay



[s]

Colour of the flame

Minimum auto-ignition
temperature
[°C]

1

70

251

18

Orange/Blue

224

 

150

236

44

Orange/Blue

 

 

300

225

86

Orange/Blue

 

 

600

224

119

Orange/Blue

 

 

800

233

48

Orange/Blue

 

2

200

233

79

Orange/Blue

228

 

400

228

102

Orange/Blue

 

 

700

231

56

Orange/Blue

 

3

175

234

73

Orange/Blue

227

 

500

227

108

Orange

 

 

700

229

79

Orange/Blue

 

 

Conclusions:
The test item is auto-ignitable with an auto-ignition temperature of 220 °C at 1021.4 – 1028.1 hPa.
Executive summary:

The auto-ignition temperature of the test substance was determined using commercially available auto-ignition temperature apparatus in accordance with EU Method A.15.

The auto-ignition temperature of the test substance was determined to be 220 ºC at 1021.4 - 1028.1 hPa. 

Description of key information

Auto Ignition Temperature: 220 ºC at 1021.4 - 1028.1 hPa, EC Method A.15, Anon, 2017.

Key value for chemical safety assessment

Autoflammability / Self-ignition temperature at 101 325 Pa:
220 °C

Additional information

The auto-ignition temperature of the test substance was determined using commercially available auto-ignition temperature apparatus in accordance with EU Method A.15.

The auto-ignition temperature of the test substance was determined to be 220 ºC at 1021.4 - 1028.1 hPa.