Carrot, ext.

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:

06 - 12 February 2018

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:

250 °C

Atm. press.:

>= 993.09 - <= 999.6 hPa

The following lowest values were recorded:

 

Table 4.12/1: Lowest Values Main Study

 

Experiment	Value	Ignition delay	Drops used
First test series	250°C	70s	9
Second test series	250 °C	65 s	12
Third test series	250 °C	58 s	12

Atmospheric pressure is measured between 993.09 and 999.60 hPa.

 

All the lowest values of the auto ignition temperature were 250 °C. These values were determined using 9 and 12 drops of test item. The test item showed auto ignition after 58, 65 and 70 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 250 °C (993.09 and 999.60 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. 5 K

 

The three lowest values of the main study lay within a range of 5 K (as required for auto ignition temperatures below 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 250°C between (993.09 and 999.60 hPa). 

This value was determined using 9 and 12 drops of test item. The test item showed auto ignition after 58, 65 and 70 seconds.

Then, the value was rounded to the next lower number divisible by 5.

Description of key information

The auto-ignition temperature of the test item is stated as 250 °C (between 99 309 and 99 960 Pa.)

No particular hazard is anticipated in normal conditions of storage

Key value for chemical safety assessment

Autoflammability / Self-ignition temperature at 101 325 Pa:

250 °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.