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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:
16 December 2014 to 05 February 2015
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
The study was conducted according to an internationally recognised method, and under GLP. The substance is considered to be adequately characterised with its purity. Therefore full validation applies.
according to guideline
EU Method A.9 (Flash-Point)
according to guideline
ASTM D93 (Standard test methods for flash point by pensky-martens closed cup tester)
according to guideline
ISO 3679 (Determination of flash point - Rapid equilibrium closed cup method)
according to guideline
other: ASTM D7094 (Standard Test Method for Flash Point by Modified Continuously Closed Cup (MCCCFP) Tester)
GLP compliance:
Type of method:
equilibrium method closed cup
Flash point apparatus:
Pensky-Martens apparatus
Dynamic viscosity of test material:
No data.
Specific details on test material used for the study:
- Storage condition of test material: In refrigerator (2-8°C) protected from light, container flushed with nitrogen
- Stability at higher temperatures: Yes, maximum temperature: 40°C, maximum duration: 10 days
Key result
Flash point:
87 °C
Atm. press.:
101.3 kPa

Preliminary study

The estimated flash-point of the test substance was 85.5 °C.


Main study


Table 4.11/1: Main study - flash-point of the test substance



Flash-point [°C]

Lowest flash-point [°C]







The difference between the results obtained with the two tests was ≤ 2 °C. From this, it was concluded that the flash-point of the test substance is the lowest flash-point obtained.

Interpretation of results:
Category 4 (combustible liquids) based on GHS criteria
EU-CLP criteria not met
The flash point of test substance is above the classification threshold of 60 °C (CLP criteria) but below 93 °C (GHS criteria). Therefore the test substance is NOT classified as a flammable liquid according to CLP, but is classified in cat.4 according to GHS.
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 Pensky-Martens closed cup equilibrium method.

Starting at 63 °C, ignition was tested for every 1 °C temperature rise. Test was performed in duplicate, and the lowest value was retained.

The flash point of test substance has been determined to be 87 °C (corrected to normal atmP).

Description of key information

The substance is NOT classified as flammable liquid according to Regulation (EC) N°1272/2008 (CLP) criteria.

The substance is classified as FLAMMABLE LIQUID category 4 according to UN GHS criteria.

Key value for chemical safety assessment

Flash point at 101 325 Pa:
87 °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)