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Flash point

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flash point of flammable liquids
Type of information:
experimental study
Adequacy of study:
key study
Study period:
1999-07-14 to 1999-08-16
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
The study was conducted according to an internationally recognised method, and under GLP. Purity and isomers composition are available from the notifier, therefore full validation applies.
according to
EU Method A.9 (Flash-Point)
according to
ISO 3679 (Determination of flash point - Rapid equilibrium closed cup method)
Version / remarks:
1983 (E), second edition - 1983-12-01, p1-7
according to
ASTM D3278 (Standard test methods for flash point of liquids by small scale closed-cup apparatus)
Version / remarks:
ASTM D3278-89, p1-7
according to
other: Anon (1983) Paints, varnishes, petroleum and related products - Determination of Flash Point - rapid equilibrium method
according to
other: Anon (1989) Flash point of liquids by Setaflash closed cup apparatus
GLP compliance:
yes (incl. certificate)
UK GLP compliance programme (inspected on 23rd March 1998/ signed on 21st July 1998)
Type of method:
equilibrium method closed cup
Flash point apparatus:
Setaflash apparatus
Specific details on test material used for the study:
Storage condition of test material: room temperature, in the dark, under nitrogen.
Key result
Flash point:
152 °C
Atm. press.:
101.325 kPa
Remarks on result:
other: +/- 2°C (corrected value)

Temperature (°C) Observations
23 No flash.
28 No flash.
33 No flash.
38 No flash.
43 No flash.
48 No flash.
53 No flash.
58 No flash.
63 No flash.
68 No flash.
73 No flash.
73 (fresh sample) No flash.
78 No flash.
83 No flash.
88 No flash.
93 No flash.
98 No flash.
103 No flash.
108 No flash.
113 (fresh sample) No flash.
118 No flash.
123 No flash.
128 No flash.
133 No flash.
138 No flash.
143 No flash.
148 No flash.
153 A blue flash spread across the sample cup.
148 (fresh sample) No flash.
149 No flash.
150 No flash.
151 No flash.
152 A blue flash spread across the sample cup.
152 (fresh sample) A blue flash spread across the sample cup.
152 (fresh sample) A blue flash spread across the sample cup.
150 (fresh sample) No flash.
150 (fresh sample) No flash.

Atmospheric pressure = 100.73 kPa

Corrected flash point = 152.137°C

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 measured according to ISO 3679 equilibrium method (listed in EU A9 guideline), using a Setaflash closed cup apparatus, under GLP.

The result was corrected for atmospheric pressure.

The normal flash point of the test substance has been determined to be 152 ± 2 °C.

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:
152 °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. Therefore, it is considered as a key study, and the result is retained as key data for purpose of CSA.

It should be noted that, due to the multi-isomers nature of the substance tested, this result may refer to the most flammable one; however, as a single boiling point was observed, flash point is not anticipated to vary significantly between components.

This study is relevant for the classification regarding flammable properties. (see IU Section 4.13 endpoint

summary for justification of non-classification)