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Auto flammability

Link to relevant study record(s)

Reference

Endpoint:

auto-ignition temperature (liquids)

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2016-01-25 to 2016-02-12

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))

Deviations:

no

Qualifier:

according to guideline

Guideline:

DIN 51794 (Testing of mineral oil hydrocarbons - Determination of ignition temperature)

Version / remarks:

Deutsches Institut für Normung (DIN), DIN Guide 51794: "Determining the Ignition Temperature of Petroleum Products", May 2003

Deviations:

no

GLP compliance:

yes

Key result

Auto-ignition temperature:

215 °C

Atm. press.:

1 013.2 - 1 027 hPa

Preliminary result:

The estimated auto-ignition temperature was 235°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 <10°C. According to the guidelines, no further testing was required.

The lowest temperature at which ignition of the test item occurred was 215°C. This temperature was a multiple of 5°C and is therefore given as the auto-ignition temperature of the test item.

Table 1: Main study – 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	70 150 250 500 800 1000	235 228 221 218 217 218	30 47 86 111 155 134	Orange Orange/blue Orange/blue Orange/blue Orange/blue Orange/blue	217
2	300 600 900	221 218 219	86 133 125	Orange/blue Orange/blue Orange/blue	218
3	200 550 950	222 215 218	74 116 138	Orange/blue Orange/blue Orange/blue	215

Conclusions:

An auto-ignition temperature value of 215°C at 1013.2-1027 hPa was determined for the substance using a relevant test method and in compliance with GLP. The result is considered to be reliable.

Description of key information

Auto-ignition temperature: 215°C at 1013.2-1027 hPa (EU  Method A.15)

Key value for chemical safety assessment

Autoflammability / Self-ignition temperature at 101 325 Pa:

215 °C

Additional information

An auto-ignition temperature value of 215°C at 1013.2 -1027 hPa was determined for the substance using a relevant test method and in compliance with GLP. The result is considered to be reliable.