GSO ISO 22030:2013
ISO 22030:2005
Gulf Standard
Current Edition
·
Approved on
01 April 2013
Soil quality -- Biological methods -- Chronic toxicity in higher plants
GSO ISO 22030:2013 Files
English
18 Pages
Current Edition
Reference Language
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GSO ISO 22030:2013 Scope
This International Standard describes a method for determining the inhibition of the growth and reproductive
capability of higher plants by soils under controlled conditions. Two species are recommended: a rapid-cycling
variant of turnip rape (Brassica rapa CrGC syn. Rbr) and oat (Avena sativa). The duration of test should be
sufficient 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 the
development of the test plants in these soils with reference or standard control soils, the test can be used to
assess 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 chemicals
incorporated into soil. By preparing a dilution series of a test substance in standard control soils, the same
endpoints can be measured to assess the chronic toxicity of chemicals. This method is not applicable to
volatile 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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