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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:
April 30 to May 07, 2014
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. The substance is considered to be adequately characterised. Therefore full validation applies.
Qualifier:
according to
Guideline:
EU Method A.9 (Flash-Point)
Version / remarks:
2008
Deviations:
no
Qualifier:
according to
Guideline:
EPA OPPTS 830.6315 (Flammability)
Version / remarks:
1996
Deviations:
no
Qualifier:
according to
Guideline:
ISO 2719 (Determination of flash point - Pensky-Martens closed cup method)
Version / remarks:
2003-09, method B for inhomogeneous and viscous liquids.
Deviations:
no
Qualifier:
according to
Guideline:
other:
Version / remarks:
UN Handbook “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”
Deviations:
no
Principles of method if other than guideline:
Not applicable
GLP compliance:
yes (incl. certificate)
Remarks:
inspected on 29 and 30 November 2010 / signed on 11 April 2011
Type of method:
non-equilibrium method closed cup
Flash point apparatus:
Pensky-Martens apparatus
Key result
Flash point:
55.5 °C
Remarks on result:
other: atmospheric pressure not provided but assumed to be ambient

Pre-Test for Security

Formation of bubbles was observed at 218 °C. At approximately 200 °C, the test item started to crackle and sizzle.

 

Determination of the Flash Point

 

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

 

Table 4.11/2: Findings

 

Program

Selected Temp.

in °C

Flash point

in °C

Notes

SEI

up to 195

70.5

not used for calculation

EBh*

71

56.5

detected flash point not valid

EBh

57

54.5

detected flash point valid

EBh*

57

72.5

detected flash point not valid

EBh

55

56.5

detected flash point valid

*not used for calculation

 

The flash point is given as the mean value of the duplicate determination. The measured flash point is therefore 55.5 ± 1.0 °C (corresponding to 328.7 ± 1.0 K).

 

The difference between the two values, which were used for calculation, was ≤ 2 K. For this reason, the determination was considered valid.

Interpretation of results:
Category 3 (flammable liquids) based on GHS criteria
Conclusions:
The flashpoint of test substance is stated as 55.5 °C (corresponding to 328.7 K).
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 four experiments were performed. The flashpoint value is the mean value of two independent valid determinations.

The flashpoint of test item was stated as 55.5 ± 1.0 °C (corresponding to 328.7 ± 1.0 K).

Description of key information

The flash point of the test item was stated as 55.5°C (corresponding to 328.7 K)

The substance is CLASSIFIED as FLAMMABLE LIQUID Category 3 according to UN GHS criteria and Regulation (EC) N°1272/2008 (CLP) criteria.

Note that the result obtained on this kind of substance should be largely influence by small amounts of volatile constituents.

Key value for chemical safety assessment

Flash point at 101 325 Pa:
55.5 °C

Additional information

A fully reliable experimental study, conducted according to a recognized ISO/EC method (non-equilibrium closed cup) and under GLP, is available. 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.