Surface tension. The trigger value for surface activity has been set to 60 mN/m at 20 ⁰C. This value is in accordance with the cut-off value of 60 mN/m as stated in point A.5 of COUNCIL REGULATION (EC) No 440/2008 of 30 May 2008 laying down test methods pursuant to Regulation (EC) No 1907/2006 of the European Parliament and of the Council on the Registration, Evaluation, Authorisation and Restriction of Chemicals (REACH). In this regulation, it is stated "Considering that distilled water has a surface tension of 72.75 mN/m at 20 °C, substances showing a surface tension lower than 60 mN/m under the conditions of this method should be regarded as being surface-active materials." The method described is based on OECD test guideline 115. (TM III 2011, ▇▇ ▇▇ 2012)
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Sources: Technical Agreement, Technical Agreement