Cedrus atlantica, ext.

Auto flammability

Administrative data

Endpoint:

auto-flammability

Type of information:

experimental study

Adequacy of study:

key study

Study period:

22/04/2015-06/05-2015

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Remarks:

in accordance with GLP

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2015

Report date:

2015

Materials and methods

Test guideline

Test guideline 1

Qualifier:

according to guideline

Guideline:

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

Deviations:

no

Test guideline 2

Qualifier:

according to guideline

Guideline:

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

Deviations:

no

Test guideline 3

Qualifier:

according to guideline

Guideline:

other: IEC 79-4

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Test material

Test material information

Constituent 1

Reference substance name:

Cedrus atlantica, ext.

EC Number:

295-985-9

EC Name:

Cedrus atlantica, ext.

Cas Number:

92201-55-3

Molecular formula:

Not applicable due to UVCB nature of the substance

IUPAC Name:

Essential oil of Cedarwood Atlas obtained from the wood of Cedrus atlantica by steam distillation

Test material form:

liquid

Details on test material:

Name of test material as cited in study report: CEDAR ATLANTICA OIL

STABILITY AND STORAGE CONDITIONS OF TEST MATERIAL
- Storage condition of test material: at room temperature

Results and discussion

Auto-ignition temperature (liquids / gases)

Key result

Auto-ignition temperature:

235 °C

Atm. press.:

>= 1 007.5 - <= 1 008.9 hPa

Remarks on result:

other:

Any other information on results incl. tables

Preliminary test

The estimated auto-ignition temperature was 260°C.

Main study

The results of the main study on the determination of the auto-ignition temperature of the test substance are given in Table 1.

 

Ignition of the test substance within 5 minutes after introduction was observed with each sample volume and with each test a minimum auto-ignition temperature was obtained. The maximum deviation between the three values was < 10°C. According to the guidelines, no further testing was required.

 

The lowest temperature at which ignition of the test substance occurred was 238°C. This temperature was rounded down to the nearest multiple of 5°C giving an auto-ignition temperature of the test substance of 235°C.

Table 1: Main study – auto-ignition temperature of the test substance

Test	Volume [μl]	Auto-ignition temperature [°C]	Ignition delay [s]	Colour of the flame	Minimum auto-ignition temperature [°C]
1	70	254	36	Orange	238
	150	243	41	Orange
	300	238	58	Orange
	500	241	76	Orange
2	100	250	42	Orange	239
	400	239	66	Orange
	600	248	73	Orange
3	80	253	37	Orange	240
	250	240	88	Orange
	550	243	70	Orange

Applicant's summary and conclusion

Conclusions:

The auto-ignition temperature of Cedarwood Atlas oil is 235°C at an atmospheric pressure between 1007.5 and 1008.9 hPa.

Executive summary:

The auto-ignition temperature of Cedarwood Atlas oil was determined according to guidelines EC A.15, DIN 51794 and IEC 79 -4 using a commercially available apparatus under GLP. The auto-ignition temperature was found to be 235°C at an atmospheric pressure between 1007.5 and 1008.9 hPa.