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Statement on Data Protection

The Physikalisch-Technische Bundesanstalt (PTB) Braunschweig and Berlin, represented by its president Prof. Dr. Cornelia Denz, Bundesallee 100, 38116 Braunschweig, Germany, Phone: +49 (0) 531 592-0, E-Mail: info(at), is responsible for the processing of your personal data in connection with Chemsafe.

PTB would like to inform you about the details of the processing of your personal data and the rights granted to you in its context.

 I. Data Processing

1. Using this Website

When you visit this website, PTB processes the following data by means of automatic logging:

  • IP address
  • Date and Time
  • retrieved page/name of retrieved file
  • message whether the access/retrieval was successful
  • volume of data transmitted

The processing is based on Article 6(1) f) of the General Data Protection Regulation (GDPR) due to the legitimate interest of PTB in the maintenance of the permanent availability and integrity of its information technology systems and websites. These data are stored temporarily, for a maximum of seven (7) days, and are used for statistical purposes, to improve our website and to ensure data protection and information security at PTB. PTB reserves the right to further scrutinize this data should there be evidence of criminal acts or cyber-attacks and forward such protocol data to the responsible authorities tasked with law enforcement and/or information security. There will be no further use or disclosure to third parties.

2. Cookies

When accessing this website, so-called temporary session cookies will be stored on your device to facilitate navigational features. These cookies usually do not contain personal data and expire after your session has ended. PTB will not link data stored in cookies with any other of your personal data.

3. When contacting PTB using E-Mail or Contact Forms concerning Chemsafe

If you contact PTB via a contact form or by e-mail, PTB will process the personal data you have used in doing so for the purpose of processing your request, contacting you and/or establishment/performance of a contractual relationship.

The legal basis on which your data will be processed depends largely on the nature of your request. If your enquiry is aimed towards (i) establishing a contractual relationship (gratuitous or non- gratuitous) with PTB by either requesting product information or contacting the respective department, or (ii) performance of a contractual relationship when contacting support or enquiring about specific circumstances concerning your account, processing will be based on Article 6(1) b) GDPR in conjunction with Chemsafe’s legal disclaimer.

Retention periods of inquiries from the general public will be determined in accordance with the statutory periods of the Registry Directive (Registraturrichtlinie), which supplements the Joint Rules of Procedure of the Federal Ministries (Gemeinsame Geschäftsordnung GGO).

Your data will be deleted once your request has been processed, notwithstanding contractual or statutory retention periods. The nature of your request will determine the periods applicable.

Further information can be requested informally or by way of a request of information pursuant to Article 15 GDPR (see below).

Any further use or disclosure to third parties, except in cases provided for by law and for the prosecution of criminal offenses or for the purpose of countering threats and dangers, will only be made if you have given your consent.

4. Registering as a User

Access to the Chemsafe database will be granted after registering as a user providing personal data. Your user account will be created processing only the data entered into the registration form.

The personal data entered during registration will be used by PTB for the purposes of assigning and individualizing the user account, checking user’s individual access authorization, for sending information on gaining or restoring access to a user account e.g. after a new password has been requested. Your contact data may be used for contacting you in the unforeseen case that data presented in Chemsafe’s database has been identified to be incorrect.

The processing of your data is based on performance of a contract according to Article 6(1) b) GDPR in conjunction with Chemsafe’s legal disclaimer and PTB’s legitimate interest in the ability to contact users of Chemsafe’s database according to Article 6(1)f) GDPR.

The personal data you entered during registration will be processed until you delete your user account.

Any further use or disclosure to third parties, except in cases provided for by law and for the prosecution of criminal offenses or for the purpose of countering threats and dangers, will only be made if you have given your consent.

II. Your Rights as a Data Subject

Data subjects may exercise certain statutory rights wherever their personal data are processed. These are in particular:

Right of Access: According to Article 15 GDPR, you have the right to obtain, free of charge, confirmation as to whether PTB processes personal data concerning you, access to this data by means of a copy of such personal data undergoing processing and in particular information concerning:

  • the purposes of processing,
  • the categories of personal data concerned,
  • the recipients or categories of recipient to whom the personal data have been or will be disclosed,
  • the envisaged period for which the personal data will be stored, or the criteria used to determine that period,
  • where the personal data are not collected from you, any available information as to their source.

When responding to a request for information, PTB will also provide you with any other information stipulated by Article 15(1) and (3) not expressly mentioned in this statement on data protection.

Right to Rectification: According to Article 16 GDPR, you have the right to obtain from PTB without undue delay the rectification of personal data concerning you or, if applicable, the right to have incomplete personal data completed.

Right to Erasure: According to Article 17 GDPR, you have the right to obtain erasure of your personal data processed by PTB if the conditions of Article 17(1) are met. This right will - according to Article 17(3) - not apply to processing necessary e.g. for exercising right of freedom of expression and information, for compliance with a legal obligation, for reasons of public interest, or for the establishment, exercise or defence of legal claims.

Right to Restriction of Processing: According to Article 18 GDPR, you have the right to obtain from PTB restriction of processing:

  • for a period enabling PTB to verify the accuracy of your personal data contested by you, and/or
  • in case the processing is unlawful and you oppose the erasure of the personal data and request the restriction of their use instead, and/or
  • when you require the personal data for the establishment, exercise or defence of legal claims, but PTB no longer needs them for the purposes of the processing and hence would need to delete them, and/or
  • when you objected to processing pursuant to Article 21(1) pending the verification whether the legitimate grounds of PTB override yours.

Personal data whose processing has been restricted will, with the exception of storage, only be processed with your consent or for the establishment, exercise or defence of legal claims or for the rights of another natural or legal person or for reasons of important public interest of the European Union or of a Member State.

PTB will inform you before any restriction of processing in the above sense is lifted.

Right to Data Portability: According to Article 20 GDPR, you have the right to receive the personal data concerning you, which you have provided to PTB, in a structured, commonly used and machine-readable format when and insofar processing of this data is based on your consent or on a contract and when this processing is carried out by automated means.

Right to Withdrawal of Consent: According to Article 7 (3) GDPR, you have the right to withdraw your consent to processing your personal data when and insofar processing is based thereon with effect for the future. Withdrawal will not affect the lawfulness of processing based on consent before its withdrawal. You may direct your withdrawal towards the e-mail-address mentioned in this website’s imprint, or use any other means of communication.

Right to Lodge a Complaint with a Supervisory Authority: According to Article 77 GDPR, you - without prejudice to any other remedy - have the right to lodge a complaint with a supervisory authority if you consider that PTB’s processing of your personal data infringes data protection law. This complaint may be lodged with a single supervisory authority within the territorial scope of the GDPR.

 III. Right to Object: You have the right to object, on grounds relating to your particular situation, to PTB’s processing of your personal data if and to the extent that this data is processed by PTB on the basis of legitimate interests.

In case of objection, PTB will cease to process such data unless PTB can demonstrate compelling legitimate grounds for the processing which override your interests, rights and freedoms or for the establishment, exercise or defence of legal claims.


Data Protection Officer:
Ms. Lena-Maximiliane Kreßmann
Phone: +49 (0)531 592-8463
Mail: datenschutz(at)