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Surface tension

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surface tension
Type of information:
experimental study
Adequacy of study:
key study
Study period:
15 January 2018 to 23 January 2018
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
according to
OECD Guideline 115 (Surface Tension of Aqueous Solutions)
according to
EU Method A.5 (Surface Tension)
GLP compliance:
yes (incl. certificate)
Type of method:
ring method
Specific details on test material used for the study:
Source and lot/batch No.of test material: Sponsor and G316507
Key result
Surface tension:
68 mN/m
20 °C
Remarks on result:
other: mean value of runs 3 and 4

Measured value of the surface tension of water : 70.9 mN.m-1

EC standard reading for surface tension of water : 72.75 mN.m-1

The age of the solution and the corresponding surface tension for both runs (after correction for

water calibration) is detailed in Table 7:1.


Two initial test runs were conducted over 305 and 295 minutes respectively. However, the results were not stable or consistent therefore two additional tests were performed. Run 1 showed a tendency for the surface tension to decrease over time whilst the surface tension showed a slight tendency to increase but readings did not stabilise.

Surface tension value was determined to be 68 mN/m.

Description of key information

Surface tension value was determined to be 68 mN/m

Key value for chemical safety assessment

Surface tension:

Additional information