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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:
08 - 13 February 2018
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Justification for type of information:
The study was conducted according to an internationally recognised method, and under GLP. The substance is considered to be adequately characterised. Therefore full validation applies.
according to
EU Method A.9 (Flash-Point)
Version / remarks:
according to
EPA OPPTS 830.6315 (Flammability)
Version / remarks:
according to
ISO 2719 (Determination of flash point - Pensky-Martens closed cup method)
Version / remarks:
2003-09, method B
according to
Version / remarks:
UN “Recommendations on the Transport of Dangerous Goods - Manual of Tests and Criteria” Rev. 5, 2009, Method 32.4 “Test methods used for determining flash point and viscosity”
Principles of method if other than guideline:
Not applicable
GLP compliance:
yes (incl. certificate)
inspected on 15 and 16 November 2017 / signed on 15 May 2018
Type of method:
non-equilibrium method closed cup
Flash point apparatus:
Pensky-Martens apparatus
Key result
Flash point:
70 °C
Atm. press.:
101 325 Pa

Table 4.11/2: Pre-test for safety:

Temperature  Observations
115°C Singular little bubbles
129°C  Many little bubbles
153°C  Condensate at the upper part of the test tube
185°C  Singular big bubbles
188°C  Many big bubbles
197°C  Chain of bubbles, test item boiled (burner out)
173°C  No bubbles anymore

After cooling down, the test item was more viscous, hardly flowable and the colour was unchanged.

Table 4.11/3: Main test results:

Program  Expected flash point (setting) in °C Flash point (found) in °C Mean in °C Notes
Search  197 57.5  not used for calculation (pre-test)
EN ISO 2719-B 58 70.5 70.0 
EN ISO 2719-B 58 69.5 difference < 2 °C

The flash point is given as the mean value of the duplicate determination. The measured flash point is therefore 70.0 ± 0.5 °C (343 ± 0.5 K) at 101325 Pa.

The difference between the two values which were measured was below 2 °C (2 K). For this reason, the determination was considered valid.

Interpretation of results:
GHS criteria not met
For REACH purpose, CLP criteria were considered instead of GHS criteria
The flashpoint of test substance is stated as 70.0 °C (343 K) at 1013 hPa
Executive summary:

The flash point of the test substance was determined under GLP according to ISO 2719:2003 (listed in EU Method A9), a non-equilibrium closed cup method.

A pre-test and a main study with two experiments were performed. The flashpoint value is the mean value of two independent valid determinations.

Description of key information

The flash point of the test item was stated as 70°C (343 K) at 1013 hPa.

The substance is NOT classified according to Regulation (EC) N°1272/2008 (CLP) criteria and is classified as Combustible Liquid (Category 4) under GHS.

Key value for chemical safety assessment

Flash point at 101 325 Pa:
70 °C

Additional information

The flash point of the test substance was determined under GLP according to EU Method A.9 (Flash-Point), using a non-equilibrium closed cup method (ISO2719 -B). It is considered as a key study.

This study is relevant for the classification regarding flammable properties.