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Auto flammability

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Reference
Endpoint:
auto-ignition temperature (liquids)
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2015-09-30 to 2015-10-31
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
EU Method A.15 (Auto-Ignition Temperature (Liquids and Gases))
Deviations:
no
Qualifier:
equivalent or similar to guideline
Guideline:
EU Method A.15 (Auto-Ignition Temperature (Liquids and Gases))
Version / remarks:
DIN 51794
Deviations:
no
GLP compliance:
no
Other quality assurance:
ISO/IEC 17025 (General requirements for the competence of testing and calibration laboratories)
Key result
Auto-ignition temperature:
380 °C
Atm. press.:
1 015 - 1 020 hPa

Results

The measurement results are shown in the following tables.

Preliminary test

Table 1: Lowest value of preliminary test series

sample volume [μl]

barometric

pressure

[mbar]

T [°C]

ignition delay

[s]

Ignition - (no) or + (yes)

remarks

150

1020

300

 

-

 

150

1020

320

 

-

 

150

1020

340

 

-

 

150

1020

360

 

-

 

150

1020

380

 

-

 

150

1020

400

4

+

bang and flame

 

Result value from preliminary test series: 400°C

Main tests

Table 2: Lowest value of first test series

sample volume [μl]

barometric

pressure

[mbar]

T [°C]

ignition delay

[s]

Ignition - (no) or + (yes)

remarks

150

1020

395

5

+

bang and flame

150

1020

390

10

+

bang and flame

150

1020

385

 

-

 

450

1020

385

12

+

bang and flame

450

1020

383

12

+

bang and flame

450/430

1020

381

-

 

 

Lowest value from the first test series: 383°C

Table 3: Lowest value of main test

sample volume [μl]

barometric

pressure

[mbar]

T [°C]

ignition delay

[s]

Ignition - (no) or + (yes)

remarks

450

1018

385

10

+

bang and flame

450

1018

383

14

+

bang and flame

450/350/250/150

1018

381

 

-/-/-/-

 

60/100/200

1018

381

 

-/-/-

 

 

Lowest value of the main test: 383°C

 

Table 4: Lowest value for the first retest

sample volume [μl]

barometric

pressure

[mbar]

T [°C]

ignition delay

[s]

Ignition - (no) or + (yes)

remarks

450

1015

385

15

+

bang and flame

450/400/300/200

1015

383

 

-/-/-/-

 

100/250/350

1015

383

 

-/-/-

 

 

Lowest value of the first retest: 385°C

Table 5: Evaluation of results

lowest value from first test series

383°C

lowest value for main test:

383°C

lowest value for first retest:

385°C

 

 

 

Lowest value of all test series: 383°C.

The stated value is the lowest of all single tests rounded down (according to the prescribed rounding procedure) to the next lowest multiple of 5 K.

Auto Ignition Temperature of the sample: 380°C

The inaccuracy of the test was ±1 K.

Conclusions:
An auto-ignition temperature value of 380°C at 1015 - 1020 hPa was determined for the substance using a relevant test method and in compliance with GLP. The result is considered to be reliable.

Description of key information

Auto-flammability: 380°C at 1015-1020 hPa (DIN 51795)

Key value for chemical safety assessment

Autoflammability / Self-ignition temperature at 101 325 Pa:
380 °C

Additional information

An auto-ignition temperature value of 380°C at 1015 - 1020 hPa was determined for the substance using a relevant test method and in compliance with a known quality system (ISO 17025). The result is considered to be reliable.