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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:

11-07-2019 to 18-12-2019

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Remarks:

Guideline study performed under GLP. All relevant validity criteria were met.

Qualifier:

according to guideline

Guideline:

other: ASTM D7094: "Standard Test Method for Flash Point by Modified Continuously Closed Cup (MCCCFP) Tester", 2012.

Deviations:

no

Qualifier:

according to guideline

Guideline:

ISO 3679 (Determination of flash point - Rapid equilibrium closed cup method)

Deviations:

no

Qualifier:

according to guideline

Guideline:

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

Deviations:

no

Qualifier:

equivalent or similar to guideline

Guideline:

EU Method A.9 (Flash-Point)

Deviations:

no

Qualifier:

equivalent or similar to guideline

Guideline:

other: UN Transport of Dangerous Goods: Manual of Tests and Criteria: ST/SG/AC.10/11/Rev.6 Paragraph 32.4.1: Non-Viscous Flammable Liquids (2009)

Deviations:

no

Qualifier:

equivalent or similar to guideline

Guideline:

ASTM D93 (Standard test methods for flash point by pensky-martens closed cup tester)

Deviations:

no

GLP compliance:

yes

Type of method:

equilibrium method closed cup

Flash point apparatus:

other: Eraflash flash-point tester

Flash point:

> 200 °C

Atm. press.:

101.325 kPa

Remarks on result:

other: No flash-point observed < 200°C ; (n=6) replicate determinations; completed at atmospheric pressure

Interpretation of results:

GHS criteria not met

Conclusions:

The flash point of the test item was determined to be > 200°C at 101.325 kPa.

Executive summary:

The flash point was determined according to ASTM D7094, equivalent or similar to EU Method A.9, using an Eraflash flash-point tester in the closed cup method consistent with ISO 3679, ISO 2719, ASTM D93 and ASTM D7094: Modified Continuously Closed Cup Flash Point (MCCCFP) test under GLP. The Eraflash tester employs a small volume of test item which reduces the risk of fires or other uncontrolled reactions of substances with an unknown flash point. The test cup was filled with approximately 2 mL test item and placed in the holder of the flash-point tester. The sample was stirred during heating. The ignition of the sample vapour was performed by an electric arc and ignition was automatically detected by the flash point tester. The flash-point is automatically corrected for atmospheric pressure by the flash point tester. Following preliminary testing starting at 25°C, an attempt was made to ignite the vapour of the test item for every 2°C temperature rise. The test cup was heated at a rate of 5 ± 0.5°C/minute. The estimated flash point was 173°C. During definitive testing, in six experiments no flashpoint attributed to the test item was observed at up to 177°C. Since no flash-point was found a further determination was made using the Equilibrium Method. Six tests were performed. In the test with the equilibrium method, no flash-point was observed up to 200°C including using a repetition with a slower heating rate. Under the conditions of the study, the flash-point of the test item is > 200°C at 101.325 kPa.

Description of key information

FP: > 200 °C at 101.325 kPa atmospheric pressure, ASTM D7094, 2019

Additional information

Key study : ASTM D7094, 2019 : The flash point was determined according to ASTM D7094, equivalent or similar to EU Method A.9, using an Eraflash flash-point tester in the closed cup method consistent with ISO 3679, ISO 2719, ASTM D93 and ASTM D7094: Modified Continuously Closed Cup Flash Point (MCCCFP) test under GLP. The Eraflash tester employs a small volume of test item which reduces the risk of fires or other uncontrolled reactions of substances with an unknown flash point. The test cup was filled with approximately 2 mL test item and placed in the holder of the flash-point tester. The sample was stirred during heating. The ignition of the sample vapour was performed by an electric arc and ignition was automatically detected by the flash point tester. The flash-point is automatically corrected for atmospheric pressure by the flash point tester. Following preliminary testing starting at 25°C, an attempt was made to ignite the vapour of the test item for every 2°C temperature rise. The test cup was heated at a rate of 5 ± 0.5°C/minute. The estimated flash point was 173°C. During definitive testing, in six experiments no flashpoint attributed to the test item was observed at up to 177°C. Since no flash-point was found a further determination was made using the Equilibrium Method. Six tests were performed. In the test with the equilibrium method, no flash-point was observed up to 200°C including using a repetition with a slower heating rate. Under the conditions of the study, the flash-point of the test item is > 200°C at 101.325 kPa.