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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:
1994-05-13 to 1994-05-17
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
guideline study with acceptable restrictions
The study was conducted according to an internationally recognised method, and under GLP. Purity is specified, however batch number is not identified, so the isomers composition could not be retrieved from the notifier. Therefore full validation cannot apply.
according to
EU Method A.9 (Flash-Point)
according to
other: Anon (1983) Paints, varnishes, petroleum and related products - Determination of Flash Point - Closed Cup equilibrium method
according to
ISO 1523 (Determination of flash point - Closed cup equilibrium method)
Version / remarks:
International standard ISO 1523-1983 (E), second edition - 1983-12-15, p16
GLP compliance:
yes (incl. certificate)
UK GLP compliance programme (inspected on 31 January 1994 / signed on 16 March 1994)
Type of method:
equilibrium method closed cup
Specific details on test material used for the study:
- Storage conditions: metal canister at approximately 4°C in the dark.
Flash point:
139 °C
Atm. press.:
101.325 kPa
Remarks on result:
other: +/- 2°C
Temperature (°C) Observations
19°C to 69°C, 5°C increments No flash.
69°C (fresh sample) to 104°C, 5°C increments No flash.
104°C (fresh sample) to 134°C, 5°C increments No flash.
139°C Blue flash spread across the sample cup.
134°C (fresh sample) to 138°C, 1°C increments No flash.
139°C Blue flash spread across the sample cup.
139°C (fresh sample) A blue flash spread across the sample cup.
139°C (fresh sample) A blue flash spread across the sample cup.
137°C (fresh sample) No flash.
137°C (fresh sample) No flash.

Atmospheric pressure = 100.61 kPa

Corrected flash point = 139.164°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 1523 (listed in EU A9 guideline), closed cup equilibrium method, under GLP.

The result was corrected for atmospheric pressure.

The flash point of the test substance is 139°C +/- 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:
139 °C

Additional information

A reliable experimental study, conducted according to a recognized ISO/EC method and under GLP, is available. Despite restrictions due to substance identification (isomers composition unknown), it is considered as a key study. 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 structures are close and b.p. range limited, flash point is not anticipated to vary significantly between components.

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