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BS ISO 21268-5:2023

BS ISO 21268-5:2023

$142.49

Soil quality. Leaching procedures for subsequent chemical and ecotoxicological testing of soil and soil-like materials – Batch test with forced aerobic or anaerobic conditions

Published By Publication Date Number of Pages
BSI 2023 30
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PDF Catalog

PDF Pages PDF Title
2 National foreword
6 Foreword
7 Introduction
9 1 Scope
2 Normative references
3 Terms and definitions
11 4 Principle
5 Reagents
12 5.5 Compressed air.
5.6 Nitrogen gas N2.
6 Apparatus
6.3 Mechanical top stirrer.
6.4 PTFE stirring rod with two movable blades.
13 6.14 Device for measuring electrical conductivity.
14 7 Sample pretreatment
7.1 Preparation of laboratory sample and specification of particle size
7.2 Preparation of test sample
7.3 Determination of the dry matter content and of water content
15 7.4 Preparation of the test portion
8 Procedure
8.1 Temperature
16 8.2 Preparation of leachants
8.2.1 General
8.2.2 Calcium chloride solution, c(CaCl2) = 0,001 mol/l
8.2.3 Anaerobic calcium chloride solution, c(CaCl2) = 0,001 mol/l with 0,100 mol/l Na-L-Lactate
8.3 Leaching step
8.3.1 Calculation to the quantity of leachant
17 8.3.2 Aerobic leaching procedure
8.3.3 Anaerobic leaching procedure
18 8.4 Liquid/solid separation step
19 8.5 Further preparation of the eluate for analysis
8.6 Blank test
9 Calculation
10 Test report
20 11 Analytical determination
11.1 General
11.2 Blank test information
21 Annex A (informative) Examples of aerobic and anaerobic extraction
24 Annex B (informative) Example of a specific liquid-solid separation procedure for soil samples
26 Annex C (informative) Calculation of centrifugation duration depending on centrifugation speed and rotor dimensions
28 Bibliography

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BS ISO 21268-5:2023
$142.49