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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:
15 January 2018 to 7 February 2018
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Reference:
Composition 0
Qualifier:
according to
Guideline:
EU Method A.15 (Auto-Ignition Temperature (Liquids and Gases))
Version / remarks:
March 04, 2016.
Deutsches Institut für Normung (DIN) Guide 51794: Determining the Ignition Temperature of Petroleum Products. May 2003.
Deviations:
no
GLP compliance:
yes (incl. certificate)
Other quality assurance:
ISO/IEC 17025 (General requirements for the competence of testing and calibration laboratories)
Test material information:
Composition 1
Specific details on test material used for the study:
Test Item
Identification: Dermol GTR
Appearance: Clear light amber liquid
Batch: P6096
Purity/Composition: >90%
Test item storage: At room temperature
Stable under storage conditions until: 15 October 2019 (expiry date)

Additional information
Test Facility test item number: 209077/A
Purity/Composition correction factor: No correction factor required
Test item handling: No specific handling conditions required
Molecular structure: Not indicated
Molecular formula: C63H110O12
Molecular weight: 1059

Test Item Characterization
The Sponsor provided to the Test Facility documentation of the identity, purity, composition, and stability for the test item(s). A Certificate of Analysis or equivalent document was provided to the Test Facility and is presented in Appendix 2.
Key result
Auto-ignition temperature:
ca. 405 °C
Atm. press.:
>= 989 - <= 1 001 hPa

Preliminary test

The estimated auto-ignition temperature was 435°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 5.

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 406°C. This temperature was rounded down to the nearest multiple of 5°C giving an auto-ignition temperature of the test item of 405°C.

Table 5          
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

423

25

orange/blue

406

 

150

421

16

orange/blue

 

 

300

415

91

blue

 

 

550

409

104

blue

 

 

750

406

141

orange/blue

 

 

1000

417

160

orange/blue

 

2

400

416

106

orange/blue

409

 

700

409

178

orange/blue

 

 

900

412

145

orange/blue

 

3

200

424

57

orange/blue

407

 

800

407

131

orange/blue

 

 

950

412

139

orange/blue

 

Conclusions:
Commercially available auto-ignition temperature apparatus was used for the determination of the degree of auto-ignitability of Glyceryl triacetyl ricinoleate.
The self ignition temperature of the test substance was found to be 405 °C, under the conditions of the test.
The atmospheric pressure was 989 and 1001 hPa.
Executive summary:

In this guideline (EU A.15) study, conducted with GLP certification, the self ignition temperature of the test substance was found to be 405 °C. The atmospheric pressure was 989 and 1001 hPa. Commercially available auto-ignition temperature apparatus was used for the determination of the degree of auto-ignitability of Glyceryl triacetyl ricinoleate.

Description of key information

Study performed to recognised study guidelines with GLP certification.

Key value for chemical safety assessment

Autoflammability / Self-ignition temperature at 101 325 Pa:
405 °C

Additional information