Privacy policy


This privacy statement informs the user about the kind, amount and reason of the data survey and usage of personal information through the responsible provider Gesteinslabor Dr. Eberhard Jahns e.K. on this website (hereafeter called service).

The civil principles of this statement are based on the german laws “Bundesdatenschutzgesetz“ (BDSG), “Telemediengesetz“ (TMG), “Telekommunikationsgesetz“ (TKG) and “Gesetz zur Erhöhung der Sicherheit informationstechnischer Systeme“ (ITSiG) as well as on the european law “General Data Protection Regulation“ (GDPR).

SSL encryption

According to § 13 TMG, website operators are obliged "[...], insofar as this is technically possible and economically reasonable, to ensure, within the scope of their respective responsibility for commercially offered telemedia, through technical and organizational precautions that [...] the technical facilities used [...] are secured against violation of the protection of personal data [...]". The transmission of data to and from this website is protected by an SSL certificate, but for reasons of compatibility an unencrypted connection is also offered. If your browser does not automatically use the encrypted connection, you can activate the encryption manually under this link.

Some client programs perform a validity check for certificates. This enables the certificate authority (the issuing company) to track which domains have been visited from your IP. Such mechanisms are far beyond the control of the provider.

Making contact

When contacting the service provider (for example using a contact form or email) you submitted data were stored to process your request and for the handling of supplementary questions. Furthermore you agree to the transfer of these data to third parties in order to process them.

Usage of web fonts

On these web pages external fonts provided by Google Fonts are used. Google Fonts is a service of Google Inc. ("Google"). The integration of these fonts is involves a server request to an server of Google, which is usually located in the USA. This causes the submission of information about which website you have visited, your ip address and additional information provided by the client software you use. Google stores these data. You can find additional information on the privacy statement of Google:

Usage of Google Maps

This website uses the product Google Maps provided by Google Inc. ("Google"). When using this website you agree to the collection, processing and usage of the data, which are automatically recorded by Google, their substitutes and third parties. Google usally stores these data on servers which are located in the USA. Google Maps captures the current GPS position of the visitor, if possible. You can find the terms of use on:


Cookies are small files, which can store device specific data on the access devices used (PC, Smartphone, ...) They are used to increase the usability of websites and therefor provide benefits to the user (for example storing login credentials). Furthermroe they are used to collect statistcal data of the website usage to improve the service. Users have influence on the usage of cookies. Most web clients have an setting to restrict or prevent the storing of cookies. Please take notice that this service may not be fully functional without cookies.

You can manage many online advertising cookies of companies on the US american websites or the european website

Revocation, changes, correction and updates

The user has the right to gain knowledge about the personal data stored about him upon request. Furthermore the user has the right of correction of wrong data and inhibition and deletion of his personal data as long as there is no legal obligation to keep them.

The data are submitted via electronic way or in written form to be handed out at the company's headquarter. One request per calendar year is free of charge. For any further request an fee can be charged if there is no evidence for an illegal use or uncorrect data.

You can claim your right on revocation and correction against the following contact address:

Gesteinslabor Dr. Eberhard Jahns e.K.
Hospitalstrasse 13
37308 Heiligenstadt

Right to inhibition of data processing, data transfers and the right to complain on the regulatory authority

The user has the right to inhibit the processing of personal data referring to him. If applicable, the user has the right to get all data provided by him in an open standardized format in comulated form, which allows to transfer these data to a competing service provider. Furthermore the user has the right to complain about supposed illegal use of personal data on the responsible regulatory authority.

Right of objection against data processing

As mentioned in Art. 21 GDPR every affected person hast the right of objection against the processing of data, which refer to him, if the lawful requirements exist.



28.07.2023 · Find us in EEK

Recently, the article "Determination of capillary threshold pressure with hydrogen gas" was published in the journal EEK.
Article from the journal EEK 01/2023

01.12.2022 · 

Gesteinslabor has successfully completed the development of a new test rig to determine the capillary threshold pressure with hydrogen.