Every time a user accesses a page offered by the Physikalisch-Technische Bundesanstalt (PTB) and every time a file is downloaded, data relating to these events are temporarily stored in a log file and processed. In particular, the following data are stored about any access and retrieval:
- IP address,
- date and time,
- retrieved page/name of retrieved file,
- volume of data transmitted,
- message whether the access/retrieval was successful.
These data will be evaluated only for statistical purposes and improvement of the offer and then deleted. The data will not be used for other purposes or passed on to third parties. When accessing individual pages, temporary cookies are used in order to simplify navigation. These session cookies do not contain any individualized, personal data and expire following the completion of a session. Techniques such as, for example, Java Applets or Active-X-Controls, which allow the access behaviour of the users to be retraced, are not used.
The voluntary use of the Chemsafe database of this website requires a registration. For this purpose the user is required to provide further personal data (name, user name and e-mail address). The collection, processing and use of these personal data is solely for the purpose of offering the user the information desired, and only in the manner and scope necessary for the technical implementation and presentation of the requested information.
Any further use of this personal data is only made if the user has expressly consented to it beforehand. The User may revoke his consent at any time with effect for the future.