ISO 22195-8:2024
(Main)Textiles — Determination of index ingredient from coloured textile — Part 8: Hibiscus
Textiles — Determination of index ingredient from coloured textile — Part 8: Hibiscus
This document specifies a test method for the determination of the index ingredient of chemicals in coloured textile with aqueous extracts from the flowers of Hibiscus.
Textiles — Détermination d'indicateurs d'ingrédients de textiles colorés — Partie 8: Hibiscus
General Information
Standards Content (Sample)
International
Standard
ISO 22195-8
First edition
Textiles — Determination of index
2024-08
ingredient from coloured textile —
Part 8:
Hibiscus
Textiles — Détermination d'indicateurs d'ingrédients de textiles
colorés —
Partie 8: Hibiscus
Reference number
© ISO 2024
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ii
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 1
5 Reagent . 2
6 Apparatus . 2
7 Procedure . 2
7.1 Standard preparation .2
7.2 Preparation of test specimen .2
7.3 Analysis .3
7.4 Determination and calculation .3
7.4.1 Determination of delphinidin 3-sambubioside .3
7.4.2 Calibration curve.3
7.4.3 Calculation of delphinidin 3-sambubioside .3
8 Test report . 4
Annex A (informative) Example of test result . 5
iii
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out through
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with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are described
in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the different types
of ISO document should be noted. This document was drafted in accordance with the editorial rules of the
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This document was prepared by Technical Committee ISO/TC 38, Textiles.
A list of all parts in the ISO 22195 series can be found on the ISO website.
Any feedback or questions on this document should be directed to the user’s national standards body. A
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iv
Introduction
There is no doubt that dyeing plays the most important role in expressing the colour of clothes. Until the
invention of synthetic dyes capable of expressing diverse colours, materials obtained from nature to dye
fabric have been used. Typically, colourants were obtained from plants or various materials were extracted
from minerals or insects. When dyeing fabrics using materials derived from these natural substances, it
becomes necessary to identify which substances the colourant was derived from. In other words, there has
been a demand to confirm whether a fabric is dyed using a natural substance.
A test method is developed to identify which type of natural substances has been used.
v
International Standard ISO 22195-8:2024(en)
Textiles — Determination of index ingredient from coloured
textile —
Part 8:
Hibiscus
1 Scope
This document specifies a test method for the determination of the index ingredient of chemicals in coloured
textile with aqueous extracts from the flowers of Hibiscus.
2 Normative references
The following document is referred to in the text in such a way that some or all of their content constitutes
requirements of this document. For dated references, only the edition cited applies. For undated references,
the latest edition of the referenced document (including any amendments) applies.
ISO 3696, Water for analytical laboratory use — Specification and test methods
3 Terms and definitions
For the purpo
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