SIST EN ISO 22030:2011 PDF

Overview

EN ISO 22030:2011 (identical to ISO 22030:2005) defines a controlled laboratory method for assessing soil quality by measuring the chronic toxicity in higher plants. The test quantifies inhibition of emergence, vegetative growth and reproductive capability of plants grown in natural or prepared soils. Two recommended test species are Brassica rapa (rapid‑cycling turnip rape, CrGC syn. Rbr) and Avena sativa (oat). The procedure is applicable to contaminated or remediated soils and can be adapted to evaluate chemicals mixed into a standard control soil.

Key topics and technical requirements

• Endpoints: seedling emergence, vegetative biomass (dry mass of shoots, flowers and seed pods), and reproductive outputs (seed/pod production). The method includes intermediate (e.g., day‑14) and final harvests to capture chronic effects.
• Test soils: natural test soils (contaminated/remediated) or control/reference soils; nutrient differences between test and control soils must be considered when interpreting results.
• Species: recommended higher plants - Brassica rapa and Avena sativa - chosen for rapid life cycles and measurable reproductive endpoints.
• Chemical testing option: Annex A describes preparing dilution series of a test substance in a standard control soil to derive chronic toxicity metrics for chemicals.
• Statistical analysis: options include NOEC (No Observed Effect Concentration) and ECx effect concentration approaches to report dose–response outcomes.
• Limitations: not applicable to volatile substances - defined as those with Henry’s constant or air/water partition coefficient > 1, or vapour pressure > 0.0133 Pa at 25 °C.
• Health & safety: handling contaminated soils and exposed plants may present chemical or biological hazards; appropriate precautions are required.

Applications and users

• Assessing the ecological function of soils as plant habitat at contaminated, remediated or reference sites.
• Supporting ecological risk assessments, site remediation decisions and long‑term monitoring of soil quality.
• Generating chronic toxicity data for registration or evaluation of chemicals when incorporated into soil.
• Typical users: environmental laboratories, ecotoxicologists, soil scientists, remediation consultants, regulatory agencies and research institutions.

Related standards

• ISO 11268-1 / ISO 11268-2 (earthworm toxicity tests)
• ISO 11269-2 (effects of chemicals on emergence and growth of higher plants)
• ISO 15176, ISO 15799 (soil characterization and ecotoxicological guidance)

Keywords: EN ISO 22030:2011, ISO 22030:2005, soil quality, chronic toxicity, higher plants, Brassica rapa, Avena sativa, plant bioassay, ecotoxicology, soil testing, NOEC, ECx.