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Deutsche Echtheitskommission
German Colour Fastness Committee

Aktuelle Meldungen

March 2021

DEK has moved

Dear customers,

DEK has moved.

Our new address is:
DEK GmbH / DEK e.V.
Elly-Heuss-Knapp-Platz 4
D-53844 Troisdorf / Germany

The new landline telephone number is +49 (0)228 9766 2485.
The telephone number of the managing director in the mobile network remains unchanged +49 (0)152 3279 3832.
The general e-mail address remains unchanged info@farbechtheit.info.
For orders, the e-mail address order@farbechtheit.info remains unchanged.

With kind regards
Andreas Metzger



Fading differences between different batches


Fading differences between different batches of DEK blue types in tests according to ISO 105-B06 "Textiles – Tests for colour fastness - Colour fastness and ageing to artificial light at high temperatures: Xenon arc fading lamp test".



Lithium hypochlorite is no longer available

Despite intensive efforts, we have failed to re-source lithium hypochlorite on the world market. We regret this and ask for your understanding that we therefore had to remove lithium hypochlorite from our product portfolio.


Emailadress for Orders

Please use for ordering the following email adress:






Substitution of Sodium perborate by Sodium percarbonate in colour fastness testing of textiles


Standardized production of auxiliary products for colour fastness tests according to ISO 105 series

Due to high demand DEK had to synthesize new quantities of some of our colour fastness auxiliary materials.

Now we have good stocks of the Blue Wool References
1 – 8
and of the Grey Scale for Carpets.

All the newly synthesized products have been tested by accredited institutions and meet the requirements of ISO 105 and DIN EN ISO 105 series standards. All the materials for the testing of colour fastness of textiles from our stock are supplied with appropriate certification.

For standardized testing of colour fastness according to ISO 105 and DIN EN ISO 105 series the use of auxiliary products supplied by DEK can be guaranteed that objective testing of coloured textiles will stand up to any comparison.





Kaestchen DEK