ISO 21232:2018 PDF

Name: ISO 21232:2018 — Textiles — Determination of moisturizing effect of textile materials by measurement of microclimate between textiles and simulated human skin using sweating guarded hotplate
SKU: ISO 21232:2018
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Textiles — Determination of moisturizing effect of textile materials by measurement of microclimate between textiles and simulated human skin using sweating guarded hotplate

Название (английский):

ISO 21232:2018

Textiles — Determination of moisturizing effect of textile materials by measurement of microclimate between textiles and simulated human skin using sweating guarded hotplate

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 9
Дата публикации:: 25 сентября 2018 г.
Издание:: ISO IS 21232 edition 1 version 1
ICS:: 59.080.01

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Описание (английский):

This document specifies a test method which simulates the microclimate for determining the moisturizing effect of textile materials by measuring water-vapour resistance including air layer and relative humidity using a sweating guarded-hotplate. This test method can be applied to fabrics, films, coatings and leather including multilayer assemblies, for use in clothing system.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

ISO 21232:2018 specifies a laboratory test method to assess the moisturizing effect of textile materials by simulating the microclimate between textiles and human skin. Using a sweating guarded-hotplate (per ISO 11092) plus a purpose-built spacing device and humidity sensor, the method measures water‑vapour resistance including the air layer (Ret_al) and relative humidity (RH) in the air gap between a simulated skin surface and the specimen. The procedure applies to fabrics, films, coatings, leather and multilayer assemblies used in clothing systems.

Key Topics and Technical Requirements

Principle: Simulate the skin–textile microclimate to evaluate how textiles retain or impede moisture evaporation and therefore influence skin hydration.

Primary measurements:

Water‑vapour resistance including air layer (Ret_al) - expressed in m²·Pa·W⁻¹.
Relative humidity (RH) within the microclimate.
Hydration value of the non‑porous hydrophilic membrane (measured by hydrometer/Corneometer® method) used to simulate skin moisture.

Apparatus:

Sweating guarded-hotplate conforming to ISO 11092:2014.
Device including a temperature and humidity sensor positioned between hotplate and specimen; sensor accuracy ±2% RH, ±1 °C.
Non‑porous hydrophilic breathable membrane (≈10–30 µm thick) with a hydration value of 45 ± 5.

Test conditions and specimen preparation:

Condition specimens at (20 ± 2) °C and (65 ± 4) % RH according to ISO 139.
Test environment: measuring unit and air at 35 °C, ambient RH 40 %, air speed ≈1 m/s.
Mount specimens over the membrane using the specified frame and magnets; wait for steady‑state readings.

Reporting: Results must include specimen identification, number of specimens, conditioning atmosphere, average and coefficient of variation for Ret_al and RH, and any deviations from the procedure.

Applications and Who Uses ISO 21232:2018

Textile manufacturers and R&D teams evaluating functional finishes (e.g., moisturizing finishes, encapsulated actives).

Apparel designers for performance clothing (sportswear, thermal garments) where skin comfort and moisture balance are critical.

Medical and cosmetic textile developers assessing materials intended to influence skin hydration.

Independent test laboratories and certification bodies performing standardized comfort and moisturizing claims verification.

Useful for substantiating product claims related to moisture retention, skin hydration potential, and microclimate comfort.

Related Standards

ISO 11092:2014 - Textiles - Physiological effects - Measurement using sweating guarded-hotplate.

ISO 139 - Textiles - Standard atmospheres for conditioning and testing.

Keywords: ISO 21232:2018, moisturizing effect, textiles, sweating guarded hotplate, microclimate, water‑vapour resistance, Ret_al, relative humidity, hydration value, textile testing.

ISO 21232:2018 PDF

Abstract

Похожие стандарты

Overview

Key Topics and Technical Requirements

Applications and Who Uses ISO 21232:2018

Related Standards

Технические детали

ISO 11092:2014

Textiles — Physiological effects — Measurement of thermal and water-vapour resistance under steady-state cond…

ISO 11092:1993/Amd 1:2012

Textiles — Physiological effects — Measurement of thermal and water-vapour resistance under steady-state cond…

BS EN ISO 13904:2016

Animal feeding stuffs. Determination of tryptophan content.