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BSI PD CEN/TS 16660:2015

BSI PD CEN/TS 16660:2015

$142.49

Characterization of waste. Leaching behaviour test. Determination of the reducing character and the reducing capacity

Published By Publication Date Number of Pages
BSI 2015 28
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This Technical Specification specifies three laboratory tests to determine the reducing character and the reducing capacity of construction products, waste materials and the eluate resulting from exposure of these solids to a leachant. Reducing species released from the product are titrated to quantify the reducing capacity.

For a specification of the materials with which experience has been acquired with the execution of the tests according to this Technical Specification see Annex A and [16].

NOTE Materials with reducing properties can in practice under both oxidizing and anoxic (isolated) conditions show completely different leaching behaviour than obtained with the leaching tests specified in EN 16457. This may seriously hamper the interpretation of the leaching tests, if this condition is not taken into consideration.

PDF Catalog

PDF Pages PDF Title
5 Foreword
6 Introduction
8 1 Scope
2 Normative references
3 Terms and definitions
9 4 Principle
10 5 Preparation of the test portion
11 6 Reagents
7 Equipment
12 8 Procedure
8.1 General
8.2 Determination of the reducing character
13 8.3 Determination of the reducing capacity of the solid material
8.3.1 Calibration procedure
8.3.2 Determination of the reducing capacity of the solid material
14 8.4 Determination of the reducing capacity of the eluates
8.4.1 Calibration procedure
8.4.2 Determination of the reducing capacity of the eluates
15 9 Calculations
9.1 Determination of the reducing character
9.2 Calculation of the reducing capacity of the solid material
16 9.3 Calculation of the reducing capacity of the eluates
17 10 Test report
18 Annex A (informative) Validation of the provisions of the reducing capacity
A.1 General
A.2 Validation results 9.1 ‘Determination of the reducing character’
19 Table A.1 — Difference in EH between demineralized water and suspension
A.3 Validation results 9.2 ‘Calculation of the reducing capacity of the solid material’
Table A.2 — Mean values
20 A.4 Validation results 9.3 ‘Calculation of the reducing capacity of the eluates’
Table A.3 — Measured values of the reducing capacity of the eluates
21 Annex B (informative) Explanatory note
B.1 Cause of reducing material behaviour
B.2 Set-up of the tests to determine the reducing capacity
22 B.3 Limitations of the cerimetric determination method
B.4 Materials with reducing properties
23 Table B.1 — Outline of the conditions that may occur for a few frequently occurring applications of reducing materials
24 Annex C (informative) Sampling, storage and pretreatment
25 Bibliography

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BSI PD CEN/TS 16660:2015
$142.49