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in stockReleased: 2019-10-02
UNE EN ISO 17226-2:2019
Leather - Chemical determination of formaldehyde content - Part 2: Method using colorimetric analysis (ISO 17226-2:2018)
Cuero. Determinación química del contenido de formaldehído. Parte 2: Método mediante análisis colorimétrico. (ISO 17226-2:2018).
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| Standard number: | UNE EN ISO 17226-2:2019 |
| Pages: | 16 |
| Released: | 2019-10-02 |
| Status: | Standard |
| Pages (Spanish): | 17 |
DESCRIPTION
UNE EN ISO 17226-2:2019
This part of ISO 17226 specifies a method for the determination of free and released formaldehyde in leathers. This method is based on colorimetric analysis. 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.