Registration Dossier
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EC number: 940-514-0 | CAS number: -
Vapour pressure
Administrative data
Link to relevant study record(s)
- Endpoint:
- vapour pressure
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Qualifier:
- according to guideline
- Guideline:
- other: ASTM D5191
- GLP compliance:
- yes
- Type of method:
- other: mini method
- Specific details on test material used for the study:
- 3.2.1 Vapour Pressure Tester
Specification: 81000-2 Setavap 2
Supplier: Stanhope-Seta
The 81000-2 Setavap 2 Vapour Pressure Tester is a benchtop automated instrument for measuring the vapour pressure of gasoline, solvents, light crude oil and similar products.
3.2.2 Vacuum pump
Specification: REFCO Rotary vane vacuum pump (RL-2)
Supplier: Stanhope-Seta
3.2.3 Other instruments and devices
-Syringe with Luer lock
-Septum - Key result
- Test no.:
- #1
- Temp.:
- ca. 37.8 °C
- Vapour pressure:
- ca. 62.7 kPa
- Conclusions:
- the Vapour Pressure of Naphtha/Light Oil is stated as 62.7 kPa at 37.8ºC.
Reference
A 3 ml air-saturated liquid sample is injected, using a special gastight syringe, through a septum on the top of the unit, into the fully evacuated ans sealed 15 ml chamber. Pressure readings are then evaluated at one minute intervals: when the pressure reading reaches a value which is stable within 0.1kPa for three minute, the value is recorded as the prescribed end point of the test. The pressure is sensed by a low volumetric displacement transducer and is electronically converted using correlations equations appropriate to the Method of Test and displayed on the digital display.
Description of key information
Key value for chemical safety assessment
- Vapour pressure:
- 62.7 kPa
- at the temperature of:
- 37.8 °C
Additional information
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