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sklademVydáno: 2019-02-11
BS EN ISO 17226-2:2019
Leather. Chemical determination of formaldehyde content Method using colorimetric analysis
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| Označení normy: | BS EN ISO 17226-2:2019 |
| Počet stran: | 14 |
| Vydáno: | 2019-02-11 |
| ISBN: | 978 0 580 98551 5 |
| Status: | Standard |
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BS EN ISO 17226-2:2019
This standard BS EN ISO 17226-2:2019 Leather. Chemical determination of formaldehyde content is classified in these ICS categories:
- 59.140.30 Leather and furs
This document specifies a method for the determination of free and released formaldehyde in leathers. This method, based on colorimetric analysis, is not intended to be used for a 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.
This process is not absolutely selective for formaldehyde. Other compounds such as extracted dyes could interfere at 412 nm.