Development of a stripping method for surfaces covered by coatings and paints containing asbestos and PAHs

Project No. FF-FP 0277

Status:

completed 04/2010

Aims:

- Further development of a method employing a suitable kind of paste to encapsulate stripping of surfaces covered by coats of paint containing asbestos and polycyclic aromatic hydrocarbons (PAH)
- Providing a safe and easy to handle method to the affected workforce.
- Provement of the feasibility of the method in a scientific manner in order to get it approved according to relevant health and safety standards.

Activities/Methods:

WP 1: Formulation of assessment criteria and development of an assessment procedure to evaluate the method
WP 2: Identification of suitable paste-like substances
WP 3: Development of a test bench to analyse the method on a laboratory scale
WP 4: Tests on the test bench
WP 5: Field tests under real conditions
WP 6: Approval of the method

Results:

In most of the field tests, no asbestos fibres were emitted; only in a few experiments, fibres were detected on nuclear pore filters. However, in those cases the number of fibres was always clearly below 15,000 fibres per m³ of air. The measurements required by BGI 664, which were carried out by the IGF (BG RCI, Institut für Gefahrstoff- Forschung), confirmed the results of the laboratory and field phases. By now the procedure was presented to the working group "Exposure to Asbestos during Demolition, Decontamination, and Maintenance Work", and a proposal for inclusion has been filed and allowed. The working instructions and the method description will soon be published as part of BGI 664. Thus, the project's aim to develop a new, simple, and economic method with low exposure was entirely achieved. The system has already been put into practice to bind different sorts of dust during an asbestos-free surface treatment to protect the workers. This allows the assumption that the developed working method will be put into practice after the completion of the authorization process.

Last Update:

21-Feb-2011

Project

Financed by:
  • Deutsche Gesetzliche Unfallversicherung e. V. (DGUV)
Research institution(s):
  • RWTH Aachen
Branche(s):

-cross sectoral-

Type of hazard:

dangerous substances

Catchwords:

Prävention, Chemische Arbeitsstoffe, Gestaltung von Anlagen und Verfahren

Description, key words:

asbestos, polycyclic aromatic hydrocarbons (PAH), restoration, surfaces

Further information

Final report (in German) (PDF, 28.1 MB)

Progress report (in German) (PDF, 5.9 MB)

Method description (in German) (PDF, 101 kB)

Herrmann, J.; Rudolf, E.: Aus der Forschung - Entfernung problematischer Metallbeschichtungen - Asbest in der Fettfalle. DGUV Forum 2 (2010) Nr. 12, S. 34-35