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BS EN ISO 20136:2017

BS EN ISO 20136:2017

$142.49

Leather. Determination of degradability by micro-organisms

Published By Publication Date Number of Pages
BSI 2017 32
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PDF Catalog

PDF Pages PDF Title
4 European foreword
6 Foreword
7 Introduction
9 1 Scope
2 Normative references
3 Terms and definitions
10 4 Symbols and abbreviated terms
5 Principle
5.1 Method A: assessment of biodegradation by manual titration
5.2 Method B: assessment of biodegradation by infrared detection
11 6 Chemicals
12 7 Apparatus and materials
14 8 Procedure
8.1 Collection and preparation of the inoculum
8.2 Preparation of the test material and reference material
8.3 Test conditions and incubation period
8.4 Test equipment
8.4.1 Equipment for the assessment of biodegradation by manual titration (equipment A)
15 8.4.2 Equipment for the assessment of biodegradation by IR detection (equipment B)
8.5 End of the test
16 9 Quantification
9.1 Equipment for the assessment of biodegradation by manual titration (equipment A)
9.1.1 Determination of the organic carbon content
9.1.2 Determination of the amount of carbon dioxide produced (Method A)
9.1.3 Correcting for normality of HCl
9.1.4 Percentage of biodegradation from carbon dioxide evolved
9.2 Equipment for the assessment of biodegradation by IR detection (Method B)
9.2.1 Determination of the organic carbon content
17 9.2.2 Determination of the amount of carbon dioxide (CO2 produced)
9.2.3 Percentage of biodegradation from CO2 data
18 10 Expression of results
11 Validity of results
12 Test report
19 Annex A (informative) Determination of the degree and rate of degradation of the material
24 Annex B (informative) Quantitative determination of leather biodegradation
28 Bibliography

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BS EN ISO 20136:2017
$142.49