European Committee for Standardization

Soil quality - Effects of pollutants on juvenile land snails (Helicidae) - Determination of the effects on growth by soil contamination
 N EN ISO 15952

Annotation

This International Standard specifies a semi-static method for the determination of the effects of contaminants on growth and survival of young snails, usually Helix aspersa aspersa M ller. The animals are exposed via the cutaneous and digestive route using a test substrate (artificial or natural soil according to the objective of the study) to which defined amounts of the following are added:

— substances or preparations;

— soils (contaminated or of unknown quality) or waste materials.

A static method may be implemented in addition to the semi-static method (optional). This method is described in Annex A.

This method does not apply to volatile substances, i.e. substances for which the Henry constant, H, or the air/water partition coefficient is over 1, or for which the vapour pressure is over 0,013 3 Pa at 25 °C.

This test takes into account the possible change in the test substance, preparation, soil or waste material because the test mixture is prepared and renewed every 7 days during the 28-day test period.

Автоматический перевод:

Качество почвы - Эффекты загрязнителей на юных улитках (Helicidae) - Определение эффектов на рост загрязнением почвы