Testing site Nitrosamine analysis

The focus of the testing site “Nitrosamine analysis“ (NA) is the analysis of material samples such as articles of daily use, vulcanisates, compounds or building materials and air samples for their contamination with nitrosamines. Nitrosamines are formed in the production of rubber articles mainly during vulcanization by reaction of secondary amines which are released from vulcanization accelerators with nitrosating agents. These nitrosating agents can be contained in the rubber compound itself or they can be incorporated from the atmosphere. A portion of the formed nitrosamines can be emitted to the working environment during vulcanization or during the storage of the manufactured articles and thus lead to a contamination of the ambient air and potentially also of the building stock. The nitrosation of emitted amines from vulcanisates with ubiquitary nitrogen oxides contribute to the contamination of air with nitrosamines, too. Ca. 90% of all nitrosamines are classified as carcinogenic according to the Ordinance on Hazardous Substances and TRGS 552 so that the monitoring, prevention and reduction of the exposition of employees and consumers is necessary and compulsory according to applicable directives.

At the testing site „Nitrosamine analysis“ (NA) accredited analyses of material and air samples for contamination with nitrosamines are performed.

We offer the following accredited tests:

Hazardous substance testing of elastomers and material samples:

  • Extraction with methanol followed by GC-TEA analysis of the extracts for high and low volatile N-nitrosamines
  • Determination of N-nitrosamines and nitrosatable compounds after migration in saliva test solution according to DIN EN 12868

Testing of air samples:

  • GC-TEA analysis of Thermosorb tubes for high-volatile N-nitrosamines according to BGI 505-23, edition of 09/1992, procedure no. 4

Further information

Information for quality management and accreditation of DIK can be found here.

Head of testing

Dr. Ina Schaumann

Phone: +49 511 84201-30


Deputy head of testing

M. Sc. Sabrina Werner

Phone: +49 511 84201-30