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Physical & Chemical properties

Flash point

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flash point of flammable liquids
Type of information:
experimental study
Adequacy of study:
key study
Study period:
experimental dates: 18 October 2018
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
The study was conducted according to an internationally recognised method with no deviation, and under GLP. The substance is considered to be adequately characterised, with isomers composition. Therefore full validation applies.
according to guideline
EU Method A.9 (Flash-Point)
Version / remarks:
Commission Regulation No 440/2008
according to guideline
ISO 3679 (Determination of flash point - Rapid equilibrium closed cup method)
Version / remarks:
Procedure B
GLP compliance:
yes (incl. QA statement)
signed on 15 Nov. 2018
Type of method:
equilibrium method closed cup
Flash point apparatus:
Setaflash apparatus
Dynamic viscosity of test material:
no data
Specific details on test material used for the study:
Storage conditions of test material: Stored refrigerated (2-8°C) in aluminium bottle. An injection of nitrogen conditions gas is performed into the bottle after each sampling to keep the test item under nitrogen atmosphere during the storage period.
Key result
Flash point:
122 °C
Atm. press.:
101.3 kPa


The flash point of the test item was estimated at 122.0°C without correction during the pre-test.

Main test - 1st determination

The flash point of the test item was detected at 121.0°C during the first determination.

An automatic correction was applied to the obtained result because the ambient pressure was not 101.3 kPa but 97.5 kPa.

With this correction, the normal flash point value is 122.0°C at 101.3 kPa.

Main test - 2nd determination

The flash point was detected at 121.0°C and the same automatic correction was applied because the ambient pressure was still 97.5 kPa.

With this correction, the normal flash point value is 122.0°C at 101.3 kPa.

As the two determinations have the same value of the flash point, the selected value for this study is 122.0°C at 101.3 kPa.

Interpretation of results:
GHS criteria not met
GHS and EU-CLP criteria not met
The flash point of the test substance is above the classification thresholds of 60°C (CLP criteria) or 93°C (GHS criteria). Therefore the test substance is NOT classified as a flammable liquid.
Executive summary:

The flash point of the test substance was determined, under GLP, according to ISO 3679 standard (listed in EU A.9 guideline), using a Setaflash closed cup rapid equilibrium method.

The sample was heated at a gradient of +2°C/min in a temperature range around the value found in the pre-test, and ignition was tested every 2°C. The test was performed in duplicate, and the lowest value was retained.

The flash point of test substance has been determined to be 122°C (corrected to normal atmP).

Description of key information

The substance is NOT classified as a flammable liquid neither according to CLP Regulation criteria, nor to UN GHS.

Key value for chemical safety assessment

Flash point at 101 325 Pa:
122 °C

Additional information

A fully reliable experimental study, conducted according to a recognized EU/ISO guideline (equilibrium closed cup method) and under GLP, is available. It is considered as a key study, and the result is retained as key data.

This study is relevant for the classification regarding flammable properties. (see IU Section 4.13 endpoint summary for justification of non-classification)