Registration Dossier

Physical & Chemical properties

Surface tension

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Administrative data

Endpoint:
surface tension
Type of information:
experimental study
Adequacy of study:
key study
Study period:
Testing was conducted between 04 March 2005 and 30 March 2005. The final report was issued 13 June 2005.
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Meets the criteria for classification as Reliable without restriction according to Klimisch et al (1997)

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2005
Report Date:
2005

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
EU Method A.5 (Surface Tension)
Deviations:
yes
Principles of method if other than guideline:
The surface tension result was not corrected using the Harkins~Jordan correction table as the correction is not applicable to the apparatus used. Once calibrated, the balance and ring assembly used in this test give a direct reading for surface tension that is within the required accuracy(± 0.5 mN/m); this is as a result of the reduced ring dimensions. This deviation has been considered not to have affected the integrity of the study.
GLP compliance:
yes (incl. certificate)
Type of method:
ring method

Test material

Reference
Name:
Unnamed
Type:
Constituent
Test material form:
solid: particulate/powder
Remarks:
migrated information: powder

Results and discussion

Surface tension
Key result
Surface tension:
73.5 mN/m
Temp.:
21.5 °C
Conc.:
1.01 g/L
Remarks on result:
other: Substances having a surface tension below 60 mN/m are regarded as being surface-active.

Applicant's summary and conclusion

Conclusions:
The surface tension of a 1.01 g/l solution of test material has been determined to be 73.5 mN/m at 21.5 ± 0.5°C. The test material is considered not to be a surface-active material.
Executive summary:

Introduction

The study was conducted to assess the surface tension of the test material using a White Electrical Institute interfacial tension balance and a procedure based on the ISO 304 ring method which complies with Method A5 of commission Directive 92/69/EEC.

Results and conclusion

Substances having a surface tension below 60 mN/m are regarded as being surface-active. The surface tension of a 1.01 g/l solution of test material has been determined to be 73.5 mN/m at 21.5 ± 0.5°C. The test material is considered not to be a surface-active material.