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Flash point

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Reference
Endpoint:
flash point of flammable liquids
Type of information:
experimental study
Adequacy of study:
key study
Study period:
From July 13th, 2018 to July 26th, 2018
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
EU Method A.9 (Flash-Point)
Deviations:
no
Qualifier:
according to guideline
Guideline:
ISO 2719 (Determination of flash point - Pensky-Martens closed cup method)
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
non-equilibrium method closed cup
Flash point apparatus:
Pensky-Martens apparatus
Key result
Flash point:
157 °C
Atm. press.:
100.6 kPa

The flash point value was corrected due to the deviation of the thermometer and atmospheric pressure.

C - determined flash point after including a thermometer deviation = 156.9ºC

p-ambient barometric pressure=100.6 kPa

T= C + 0.25 (101.3 - p) = 156.9ºC + 0.25 (101.3 kPa - 100.6 kPa) = 157.1 ºC ≈157.0ºC

measurement uncertainty: 2.6ºC

Table 1. Results of the determination of flash point.

Preliminary test

Test No. 1

Test No.2

Temperature

Result

Temperature

Result

Temperature

Result

25

-

136

-

136

-

28

-

138

-

138

-

31

-

140

-

140

-

34

-

142

-

142

-

37

-

144

-

144

-

40

-

146

-

146

-

43

-

148

-

148

-

46

-

150

-

150

-

49

-

152

-

152

-

52

-

154

-

154

-

55

-

156

+

156

+

58

-

61

-

64

-

67

-

70

-

73

-

76

-

79

-

82

-

85

-

88

-

91

-

94

-

97

-

100

-

103

-

106

-

109

-

112

-

116

-

120

-

124

-

128

-

132

-

136

-

140

-

144

-

148

-

152

-

156

+

(+)-yes (-)-no

Interpretation of results:
other: Not classified (CLP Regulation EC no. 1272/2008
Conclusions:
Flash point of the test item was determined to be 157ºC at atmospheric pressure of 100.6 kPa.
Executive summary:

The flash point of the test item was determined according to EEC method A.9 and ISO 2719, under GLP conditions and using a Pnesky-Martens closed cup method. A preliminary test was performed to set the starting temperature for the test. Then, two tests were performed applying the ignition source starting from 20ºC less than the temperature obtained at the preliminary test. The flash point was determined to be 157ºC at 100.6 kPa.

Description of key information

Key study. EEU method A.9 and ISO 2719 . GLP study. The flash-point of the test item was determined to be 157 ºC at 100.6 kPa.

Key value for chemical safety assessment

Flash point at 101 325 Pa:
157 °C

Additional information

The flash point of the test item was determined according to EEC method A.9 and ISO 2719 using a Pnesky-Martens closed cup method, under GLP conditions. A preliminary test was performed to set the starting temperature for the test. Then, two tests were performed applying the ignition source starting from 20ºC less than the temperature obtained at the preliminary test. The flash point was determined to be 157ºC at 100.6 kPa.