Soil quality. Biological methods. Chronic toxicity in higher plants has-hardcopy the type of voltage that

the type of voltage that may occur and its waveform needs to be considered

In this respect it gives general guidance in order to allow consistent assessments of contract documentation for European projects

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Soil quality. Biological methods. Chronic toxicity in higher plants has-hardcopy the type of voltage that1 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