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Flash point

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Reference
Endpoint:
flash point of flammable liquids
Type of information:
experimental study
Adequacy of study:
key study
Study period:
18. July 2017-03. August 2017
Reliability:
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. No deviation was reported. Test substance is adequately specified. Therefore full validation applies.
Qualifier:
according to guideline
Guideline:
EU Method A.9 (Flash-Point)
Deviations:
no
Qualifier:
according to guideline
Guideline:
ISO 2719 (Determination of flash point - Pensky-Martens closed cup method)
Deviations:
no
Qualifier:
according to guideline
Guideline:
EPA OPPTS 830.6315 (Flammability)
Deviations:
no
Qualifier:
according to guideline
Guideline:
other: UN Manual Test Methods 32.4
Deviations:
no
Principles of method if other than guideline:
Not applicable
GLP compliance:
yes (incl. QA statement)
Remarks:
inspected on October 13 and 14, 2014 / signed on April 08, 2015
Type of method:
non-equilibrium method closed cup
Flash point apparatus:
Pensky-Martens apparatus
Key result
Flash point:
57.5 °C
Atm. press.:
101 325 Pa
Remarks on result:
other: The flash point is given as the mean value of the duplicate determination. The measured flash point is therefore 57.5 °C (corresponding to 330.7 K) at 101325 Pa.

Findings

Pre-Test for Safety

Formation of bubbles was observed at 170°C. The chain of bubble broke at 167°C. After cooling down, no further changes of the test item were observed.

Determination of the Flash Point

The results of the determinations are presented in the following table.

Table 4.11/2    Findings

Program

Expected flash point (setting)

in °C

Flash point (found)
in °C

Mean
in °C

Notes

Search

167

57.8

 

not used for calculation(pre-test)

EN ISO 2719-B

58

57.5

57.5

difference < 2 °C

EN ISO 2719-B

58

57.5

 

Evaluation and Result

The flash point is given as the mean value of the duplicate determination. The measured flash point is therefore 57.5°C (corresponding to 330.7 K) at 101325 Pa.

Discussion

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

The determination was considered valid.

Interpretation of results:
Category 3 (flammable liquids) based on GHS criteria
Conclusions:
The flash point of test substance is below the classification thresholds of 60°C (CLP criteria) or 93°C (GHS criteria). The substance is classified as flammable liquid category 3 according to CLP and UN GHS criteria.
Executive summary:

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 -Part B).

First, the pre-test for safety was performed. When heating a sample of the test item in a aluminium block with a busen burner, a bubble chain was observed at approx. 170 °C. The chain broke at approx. 167 °C. After cooling down no changes were visible.

The flashpoint of the test item is stated as 57.5°C at 101325 Pa (corresponding to 330.7K).

This value is the mean value of two independent determinations.

Description of key information

The substance is classified as flammable liquid category 3 according to CLP and UN GHS criteria.

Key value for chemical safety assessment

Flash point at 101 325 Pa:
57.5 °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 -Part B).

First, the pre-test for safety was performed. When heating a sample of the test item in a aluminium block with a busen burner, a bubble chain was observed at approx. 170 °C. The chain broke at approx. 167 °C. After cooling down no changes were visible.

The flashpoint of the test item is stated as 57.5°C at 101325 Pa (corresponding to 330.7K).

This value is the mean value of two independent determinations.

It is considered as a key study. The result is retained as key data for purpose of CSA.

This study is relevant for the classification regarding flammable properties.

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