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BS EN ISO 17226-1:2021 – TC

BS EN ISO 17226-1:2021 – TC

$134.27

Tracked Changes. Leather. Chemical determination of formaldehyde content – Method using high-performance liquid chromatography

Published By Publication Date Number of Pages
BSI 2021 38
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This document specifies a method for the determination of free and released formaldehyde in leathers. This method, based on high-performance liquid chromatography (HPLC), is selective and not sensitive to coloured extracts and is intended to be used for precise quantification of formaldehyde.

The formaldehyde content is taken to be the quantity of free formaldehyde and formaldehyde extracted through hydrolysis contained in a water extract from the leather under standard conditions of use.

PDF Catalog

PDF Pages PDF Title
22 undefined
26 Foreword
29 1 Scope
2 Normative references
3 Terms and definitions
4 ​Conformity
5 Principle
30 6 Reagents
7 Apparatus
31 8 Sampling
9 Sample preparation and analysis
9.1 Procedure for the determination of formaldehyde in the stock solution
9.1.1 Preparation of the formaldehyde stock solution
9.1.2 Determination
32 9.2 Procedure for the determination of formaldehyde in leather by the HPLC method
9.2.1 Extraction of the leather
9.2.2 Derivatization with DNPH and determination of formaldehyde in leather with HPLC
9.2.3 Calibration of HPLC
33 10 Expression of results
10.1 Calculation of the formaldehyde content in leather samples
10.2 Spiking — determination of recovery rate
34 10.3 Expression of the results
10.4 Precision
11 Test report
35 Annex A (informative) Precision: reliability of the HPLC method
36 Annex B (informative) HPLC conditions
37 Bibliography

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BS EN ISO 17226-1:2021 - TC
$134.27