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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:
February 2012
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
guideline study with acceptable restrictions
Remarks:
Study performed according to international guidelines but not under GLP and with some lack of details.
Reason / purpose for cross-reference:
reference to other study
Reason / purpose for cross-reference:
reference to same study
Qualifier:
according to guideline
Guideline:
EU Method A.15 (Auto-Ignition Temperature (Liquids and Gases))
Deviations:
not specified
Qualifier:
according to guideline
Guideline:
other: Norm DIN 51794
Deviations:
not specified
GLP compliance:
no
Key result
Auto-ignition temperature:
250 °C
Atm. press.:
994 hPa
Remarks on result:
other: Time lag: 4 minutes

Preliminary study:

Time lag: 4 minutes ; amount 5 drops = 3 mL

Temperature   Results
 240°C  No-ignition
 260°C  Ignition

The preliminary results indicate that the auto-ignition temperature is aroud 260°C at 994 hPa.

Main study:

Time lag: 4 minutes ; amount of test item: 1 to 5 droplets = 0.6 to 3 mL

 Temperature exp 1  exp 2 exp 3 exp 4 exp 5
 240°C  No ignition No ignition   No ignition  No ignition  No ignition
 250°C No ignition No ignition No ignition No ignition  Ignition
 260°C Ignition   -  -  -

During the main test the auto-ignition temperature of nopyl acetate was determined to be 250°C at 994 hPa.

Conclusions:
The auto ignition temperature of nopyl acetate was determined to be 250 °C at 994 hPa.
Executive summary:

The determination of the auto flammability was performed in accordance with EU Method A.15 and the Standard Test Method DIN 51794.

In the preliminary test, ignition was observed at around 260 °C at 994 hPa.

In the main test, the auto ignition temperature of nopyl acetate was determined to be 250 °C at 994 hPa.

 

Description of key information

The auto ignition temperature was determined according to the DIN 51794 standard method.
The auto ignition temperature of nopyl acetate is 250 °C at 994 hPa.

Key value for chemical safety assessment

Autoflammability / Self-ignition temperature at 101 325 Pa:
250 °C

Additional information

Key study conducted according to EU Method A.15 and DIN 51794 standard method. The result is scientifically acceptable but not obtained under GLP. Therefore a reliability of 2 (reliable with restrictions) is assigned. The result can be used as key value for chemical safety assessment.

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