Concrete of Rosa Damascena (Rosaceae) obtained from fresh flowers by extraction with an apolar solvent

Auto flammability

Link to relevant study record(s)

Reference

Endpoint:

auto-ignition temperature (liquids)

Type of information:

experimental study

Adequacy of study:

key study

Study period:

13-19 December 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. The substance is considered to be adequately characterised. Therefore full validation applies.

Qualifier:

according to guideline

Guideline:

EU Method A.15 (Auto-Ignition Temperature (Liquids and Gases))

Version / remarks:

2008

Deviations:

no

Qualifier:

according to guideline

Guideline:

DIN 51794 (Testing of mineral oil hydrocarbons - Determination of ignition temperature)

Version / remarks:

2003

Deviations:

no

Principles of method if other than guideline:

Not applicable

GLP compliance:

yes (incl. QA statement)

Remarks:

inspected on 13 and 14 October 2014 / signed on 08 April 2015

Key result

Auto-ignition temperature:

360 °C

Atm. press.:

>= 979.48 - <= 1 011.15 Pa

The following lowest values were recorded:

 

Table 4.12/1: Lowest Values Main Study

 

Experiment	Value	Ignition delay	Drops used
First test series	360°C	16s	17
Second test series	363 °C	19 s	13
Third test series	365 °C	26 s	12

Atmospheric pressure is measured between 979.48 and 1011.15 hPa.

 

The lowest value of the auto ignition temperature is 360 °C. This value was determined using 17 drops of test item. The test item showed auto ignition after 16 seconds.

Due to safety reasons and according to the guidelines the lowest measured temperature at which an ignition was observed was rounded to the next lower number divisible by 5, giving a value of 360 °C (979.48 - 1011.15 hPa)

 

Validity

In the DIN, the following limits are applied to the range of lowest values which may be used for evaluation:

 

Table 4.12/2: Acceptable ranges

 

Auto ignition temperature	Range
> 300 °C	difference between 3 values of the main study max. 10 K

 

The largest difference between measured ignition temperatures was 5 K. Therefore, the three lowest values of the main study lay within a range of 10 K (as required for auto ignition temperatures above 300 °C) and all measured values of the evaluated test series show good correlation.

No observations were made which might cause doubts concerning the validity of the study outcome.

Conclusions:

This parameter/method is not relevant for classification, however the information is useful regarding potential additional fire hazard. No particular hazard is anticipated in normal conditions of storage.

Executive summary:

The study was conducted under GLP according to standard DIN 51794:2003 (listed in EU A.15 guideline).

Under the test conditions, the lowest temperature that will result in the ignition of the test item after being injected into the apparatus was determined as 360°C between 979.48 and 1011.15 hPa. This value was determined using approximately 17 drops of test substance. The test substance showed auto ignition after 16 seconds.

Description of key information

The auto-ignition temperature of the test item is stated as 360 °C (between 979.48 and 1011.15 hPa.)

No particular hazard is anticipated in normal conditions of storage

Key value for chemical safety assessment

Autoflammability / Self-ignition temperature at 101 325 Pa:

360 °C

Additional information

A GLP fully reliable experimental study, conducted according to a recognized EU/DIN method, is available. Therefore, it is considered as a key study. The result is retained as key data.

 

This parameter is not relevant for classification, however the information is useful regarding process safety and potential additional fire hazard.