As substâncias prejudiciais nos têxteis comprometem a saúde dos trabalhadores, assim como a dos compradores. A FISCHER oferece dispositivos de teste fiáveis que determinam de forma precisa a presença nos têxteis de resíduos de substâncias prejudiciais no processamento de auxiliares ou corantes. Isso torna possível saber, de forma rápida e fácil, que artigos de vestuário cumprem o padrão internacional Oeko-Tex 100.


Notas de aplicação

Analysis of harmful substances in textiles for Oeko-Tex® certification

In the textile industry, consumer protection plays an important role. Product labels, such as the Oeko-Tex® Standard 100, are an important mark of quality and often a decisive purchasing factor. But to qualify for this desirable certification, manufacturers must produce all components of their products according to the required criteria and ensure compliance with the prescribed limits.

When purchasing clothing many consumers look for textiles that have been tested for evidence of harmful substances. The product label "Confidence in Textiles - Tested for harmful substances according to Oeko-Tex® Standard 100" is an independent, globally uniform certification system for textiles of all kinds (more information: www.oeko-tex.com).

Oeko-Tex labelling

Fig.1: Oeko-Tex® labelling for textile products (source: Oeko-Tex®)

To be certified according to the Oeko-Tex® Standard 100, all parts of the article must meet the required criteria: for example, in clothing, besides the outer fabric, also sewing threads, zippers, buttons, rivets and other notions and appliqués. For precise analysis of pollutants such as Pb, Cd, Cu, Cr, Ni etc., the non-destructive X-ray fluorescence (XRF) method is ideal. Using this method, it is possible to detect even the smallest concentrations of prohibited or restricted substances in a sample.

The FISCHERSCOPE® X-RAY XDV®-SDD provides an extremely precise measuring system for determining even the slightest traces of banned substances. Fibres and fabrics, whole bobbins of thread or yarn, and even appliqués made of plastic, glass or metal can be checked quickly and easily.

Spools of thread in industrial textile production

Fig.2: Spools of thread in industrial textile production

The scope and requirements of Oeko-Tex® testing depend on the intended use of a textile product – the more intensive the skin contact, the stricter the limits. Correspondingly, there are four product classes:

I – Garments and toys for babies and kids under three

II – Fabrics worn directly against the skin

III – Fabrics with little or no direct skin contact

IV – Notions and other decorative materials







90 ppm

90 ppm

90 ppm

90 ppm


50 ppm

100 ppm

100 ppm

100 ppm

Tab.1: Limits for all non-textile accessories and components as well as for solution-dyed fibres and products containing pigments

Using the FISCHERSCOPE® X-RAY XDV®-SDD, it is easy to test textiles and related components for minute traces of harmful substances in order to verify compliance with the international Oeko-Tex® Standard 100. For further information please contact your local FISCHER representative.

O seu contacto com a FISCHER


Ultraprecisão Metrologia Calibrada, Lda.
Tel.: (+351) 234 351 288
E-mail: ultraprecisao@ultraprecisao.com
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