标准编号：ISO 22030:2005
中文名称：土壤质量-生物学方法-高级植物的慢性毒素
英文名称：Soil quality — Biological methods — Chronic toxicity in higher plants
发布日期：2005-02
标准范围
This International Standard describes a method for determining the inhibition of the growth and reproductivecapability of higher plants by soils under controlled conditions. Two species are recommended: a rapid-cyclingvariant of turnip rape (Brassica rapa CrGC syn. Rbr) and oat (Avena sativa). The duration of test should besufficient to include chronic endpoints that demonstrate the reproductive capability of the test plants.By using natural test soils, e.g. from contaminated sites or remediated soils, and by comparing thedevelopment of the test plants in these soils with reference or standard control soils, the test can be used toassess soil quality, especially the function of the soil as a habitat for plants.Annex A describes modifications allowing use of the chronic plant assay for the testing of chemicalsincorporated into soil. By preparing a dilution series of a test substance in standard control soils, the sameendpoints can be measured to assess the chronic toxicity of chemicals. This method is not applicable tovolatile substances, i.e. substances for which H (Henry’s constant) or the air/water partition coefficient is greater than 1, or for which the vapour pressure exceeds 0,013 3 Pa at 25 °C.
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