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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:
22 Jun 2011 - 30 Jun 2011
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
guideline study with acceptable restrictions
Qualifier:
according to
Guideline:
EU Method A.15 (Auto-Ignition Temperature (Liquids and Gases))
Qualifier:
according to
Guideline:
other: DIN EN 14522
GLP compliance:
no
Auto-ignition temperature:
225 °C
Atm. press.:
ca. 970 hPa

Details:

 

The auto-ignition temperature was measured in a series of tests; one preliminary test and three further test series were performed. For each test series the lowest temperature at which auto-ignition occurred was noted. The results are summarised in the following table:

 

Parameter

Value

Lowest value of test series 1:

231°C

Lowest value of test series 2:

228°C

Lowest value of test series 3:

233°C

Lowest value of all test series:

228°C

Absolute deviation of the lowest value (1.5%):

3.4°C

 

Auto-ignition temperature:

225°C

 

The atmospheric pressure range at which the measurements were taken was 966.2 to 971.4 hPa.

 

Remarks

According to DIN EN 14522 the lowest value of all test series (228°C) was reduced by the deviation value based on the precision of the method (rel. 1.5% = 3.4°C). The resulting value was rounded to the next integral number (225°C).

Conclusions:
An auto-ignition temperature of 225°C at ca. 970 hPa was determined in a reliable study conducted according to an appropriate test protocol. It was not conducted according to GLP.

Description of key information

225°C at ca. 970 hPa (EU Method A.15)

Key value for chemical safety assessment

Additional information