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Surface tension

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Reference
Endpoint:
surface tension
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2009-2010
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
OECD Guideline 115 (Surface Tension of Aqueous Solutions)
Deviations:
no
GLP compliance:
yes
Type of method:
ring method
Surface tension:
62.6 mN/m
Temp.:
20 °C
Conc.:
1 g/L

Individual results:

Test Range of values Measuring period
water as reference 70.8 to 71.2 mN/m 59 min
test substance 1st un 62.5 to 62.7 mN/m 71 min
test substance 3rd run 62.4 to 62.8 mN/m 59 min
Conclusions:
The surface tension of an aqueous preparation of the test item (ß = 1 g/I) at 20°C was found to be at 62.6 mN/m.
Executive summary:

In this guideline (OECD 115) study conducted to GLP standards, the test material (EC 231-272-0) was determined to have s surface tension of 62.6 mN/m at 20°C

Description of key information

 Study conducted to recognised training guidelines with GLP

Key value for chemical safety assessment

Surface tension:
62.6
in mN/m at 20°C and concentration in mg/L:
1 000

Additional information

The surface tension was determined by ring method to be 62.6 mN/m at 20°C (c= 1 g/L)

Based on the criteria as outlined in the OECD Guideline it is concluded that the test substance should not be regarded as being surface-active material.