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Ecotoxicological information

Short-term toxicity to aquatic invertebrates

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Description of key information

The acute toxicity of the test substance to Daphnia magna was tested under semi-static conditions according to OECD guideline 202. The EC50 (48 h) was calculated to be 27 mg/L. The NOEC was calculated to be 4.6 mg/L.

Key value for chemical safety assessment

EC50/LC50 for freshwater invertebrates:
27 mg/L

Additional information

The acute toxicity of the Water Accommodated Fraction (WAF) of Sika Hardener LTJ to Daphnia magna (water flea) was tested under semi-static conditions for 48 hours in accordance with OECD guideline no. 202 and EU method C.2. The test item is immiscible with water and therefore a WAF was prepared. Due to the hydrolysis of SIKA Hardener LTJ no analytial method for the determination of the concentration was available. Thus, the nominal concentrations was used for calculation. The EC50 (48 h) was calculated to be 27 mg/L. The highest concentration causing no immobility (no observed effect concentration, NOEC) after 48 hours amounted to 4.6 mg/L. The EC100 was 100 mg/L, which was observed after 48 hours. All validation criteria were fullfilled.