Resinoid of Liquidambar styraciflua (Hamamelidaceae) obtained from exudate by organic solvents extraction

Flash point

Link to relevant study record(s)

Reference

Endpoint:

flash point of flammable liquids

Type of information:

experimental study

Adequacy of study:

key study

Study period:

experimental dates: 15/03/2018 to 19/03/2018

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Remarks:

The study was conducted according to an internationally recognised method, and under GLP, with no deviation. The substance is considered to be adequately characterised. Therefore full validation applies.

Qualifier:

according to guideline

Guideline:

EU Method A.9 (Flash-Point)

Version / remarks:

Regulation (EC) No 440/2008

Qualifier:

according to guideline

Guideline:

ISO 2719 (Determination of flash point - Pensky-Martens closed cup method)

Version / remarks:

German version EN ISO 2719:2016

Qualifier:

according to guideline

Guideline:

EPA OPPTS 830.6315 (Flammability)

Version / remarks:

August 1996

GLP compliance:

yes (incl. QA statement)

Remarks:

Landesamt für Umwelt (inspected on 15 & 16 November 2017 / signed on 15 May 2018)

Type of method:

non-equilibrium method closed cup

Flash point apparatus:

Pensky-Martens apparatus

Dynamic viscosity of test material:

very viscous liquid, but flowable (˂ 500 Pa.s)

Specific details on test material used for the study:

STORAGE CONDITIONS OF TEST MATERIAL
in the closed original metal bottle at 3.3 – 7.3 °C under inert gas (argon).

Key result

Flash point:

127 °C

Atm. press.:

101 325 Pa

Pre-Test for Safety

Temperature	Observation
122.2 °C	Small, isolated bubbles were observed
270.2 °C	Bubbles rose faster
306.4 °C	Many bubbles were observed
318.4 °C	Chain of bubbles was observed (burner off)
313.8 °C	The chain of bubbles broke up

After cooling down the test item became more viscous and the colour became more brown.

Determination of the Flash Point

Program	Expected flash point (setting) in °C	Flash point (found) in °C	Mean in °C	Notes
Search	313	134.1		not used for calculation (pre-test)
EN ISO 2719-B	134	127.0	126.8	difference < 2 K
EN ISO 2719-B	134	126.5

The flash point is given as the mean value of the duplicate determination. The measured flash point is therefore126.8 ± 0.3°C (corresponding to 399.9 ± 0.5 K).

Atmospheric pressure was not recorded, as measurements are automatically corrected to normal by the apparatus.

Interpretation of results:

GHS criteria not met

Remarks:

GHS and EU-CLP criteria not met

Conclusions:

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 under GLP according ISO 2719 standard (listed in EU A9 guideline), Pensky-Martens method.

Experiment was performed in duplicate, and the mean result is retained.

The normal flash point of the test substance has been determined to be 127°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:

127 °C

Additional information

A fully reliable experimental study, conducted according to a recognized EU/ISO guideline (non-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)