Registration Dossier

Administrative data

Endpoint:
surface tension
Type of information:
experimental study
Adequacy of study:
key study
Study period:
5th March 1993 to 1st October 1993
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Study conducted in compliance with agreed protocols, with no or minor deviations from standard test guidelines and/or minor methodological deficiencies, which do not affect the quality of the relevant results.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1993
Report Date:
1993

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to
Guideline:
OECD Guideline 115 (Surface Tension of Aqueous Solutions)
Deviations:
no
Qualifier:
according to
Guideline:
EU Method A.5 (Surface Tension)
Deviations:
no
GLP compliance:
yes (incl. certificate)
Type of method:
OECD harmonised ring method

Test material

Reference
Name:
Unnamed
Type:
Constituent

Results and discussion

Surface tensionopen allclose all
Surface tension:
72.4 mN/m
Temp.:
24.5 °C
Conc.:
0.03 mg/L
Surface tension:
72.3 mN/m
Temp.:
24.5 °C
Conc.:
0.02 mg/L
Surface tension:
72.2 mN/m
Temp.:
24.5 °C
Conc.:
0.01 mg/L

Any other information on results incl. tables

Table 1: Surface tension measurements

-

Surface tension measured for the concentration 0.03 mg/L or 63% saturated (mN/m)

Surface tension measured for the concentration 0.02 mg/L or 42% saturated (mN/m)

Surface tension measured for the concentration 0.01 mg/L or 21% saturated (mN/m)

Time 1

76.7

76.6

76.5

Time 2

76.7

76.6

76.5

Time3

76.7

76.7

76.6

Mean

76.7

76.6

76.5

Calibration factor

0.9434

0.9434

0.9434

Surface tension of the test article (mN/m)

72.4

72.3

72.2

Applicant's summary and conclusion

Conclusions:
The surface tension of the test article was determined to be :

72.4 mN/m (63% saturated)
72.3 mN/m (42% saturated)
72.2 mN/m (21% saturated)
Executive summary:

In a general physico-chemical properties study (13193), the surface tension of the test material was determined to be 72.4 mN/m, 72.3 mN/m and 72.2 mN/m for 63%, 42% and 21% saturated solutions, respectively, according to Method A5 of EEC Directive 84/449 and OECD Guideline 115.