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Physical & Chemical properties

Flash point

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Reference
Endpoint:
flash point of flammable liquids
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2000-09-21
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
ISO 3679 (Determination of flash point - Rapid equilibrium closed cup method)
Version / remarks:
ISO Standard 3679 (1983)
Deviations:
no
Qualifier:
according to
Guideline:
EU Method A.9 (Flash-Point)
Version / remarks:
EEC Commission Directive 92/69 - A9 method (1992)
Deviations:
no
GLP compliance:
yes (incl. certificate)
Type of method:
equilibrium method closed cup
Flash point apparatus:
Setaflash apparatus
Key result
Flash point:
70.5 °C
Atm. press.:
101.3 kPa



PRELIMINARY TEST


Experimental conditions:


Atmospheric pressure: 97 kPa.


Relative humidity: 54% of saturated air.


Apparatus (SEPC Code number):


Automatic Setaflash closed tester (Stanhope-Seta, England): 193.


Syringe: 2 ml capacity.


Results:


Observed flash-point of the test item: 70°C.


MAIN TEST


Experimental conditions:


Atmospheric pressure: see results below.


Relative humidity: 54% of saturated air.


Results:






























Assay No.



Observed flash-point


in °C



Atmospheric pressure


in kPa



Corrected flash-point


in °C


 



1



69



97



70



2



70



97



71



3



69



97



70



 


The observed flash-point was corrected to a pressure of 101.3 kPa following the formula:


Corrected flash-point = observed flash-point + C


With


C = (101.3 - P) -i- 4


where:


C is the correction, in degrees Celsius,


P is the atmospheric pressure expressed in kPa during each determination.

Interpretation of results:
GHS criteria not met
Conclusions:
The mean flash-point of the test item (corrected at the pressure of 101.3 kPa) was determined to be 70.5 °C ± 1.0 °C.
Executive summary:





A study was conducted according to Directive 92/69/EEC method A.9 to determine flash point of the test item using an equilibrium closed cup method. Aliquotes of 2 mL test item were introduced in the Setaflash tester. A preliminary test series was performed in order to determine a range of temperature between which the flashpoint is included. Therefore, several assays were performed from 25 °C and 75 °C, with a maximum interval of 5 °C, until ignition was observed. Subsequently, a main test series  of three assays was performed to find the precise value of the flash-point. The measured flash point at atmospheric pressure was corrected to a standard pressure of 1013 hPa. The corrected flash point was determined to be at 70.5 °C.


 

Description of key information


The mean flash-point of the test item (corrected at the pressure of 101.3 kPa) was determined to be 70.5 °C ± 1.0 °C (reference 4.11-1).

Key value for chemical safety assessment

Flash point at 101 325 Pa:
70.5 °C

Additional information



A study was conducted according to Directive 92/69/EEC method A.9 to determine flash point of the test item using an equilibrium closed cup method. Aliquotes of 2 mL test item were introduced in the Setaflash tester. A preliminary test series was performed in order to determine a range of temperature between which the flashpoint is included. Therefore, several assays were performed from 25 °C and 75 °C, with a maximum interval of 5 °C, until ignition was observed. Subsequently, a main test series  of three assays was performed to find the precise value of the flash-point. The measured flash point at atmospheric pressure was corrected to a standard pressure of 1013 hPa. The corrected flash point was determined to be at 70.5 °C (reference 4.11-1).