Hazardous substances - interesting facts for metalworking, surface treatment and plastics processing
WHAT ARE THE HAZARDOUS SUBSTANCES?
You are not sure whether hazardous substances occur at your workplaces? Substances and mixtures with one or more "hazardous characteristics" are called hazardous substances. The hazard characteristics are for example toxic, corrosive, carcinogenic, highly flammable or dangerous for the environment.
Substances with prescribed occupational exposure limits as well as substances that endanger health due to chemical properties are also considered hazardous substances.
Hazardous substances in the welding shop include zinc oxides, which are formed during welding work with zinc sheets, and nitrogen oxides, which are formed at the edge of an oxyacetylene flame.
To keep the concentration of hazardous substances in the air as low as possible, AVEVO offers a wide range of different extraction systems. These effectively filter the hazardous substances from the air and ensure healthy work hygiene.
HAZARDOUS SUBSTANCES FROM VARIOUS MACHINING PROCESSES
HAZARDOUS SUBSTANCES DURING WELDING WORK
Welding, thermal cutting and spraying as well as soldering generates welding fumes that are hazardous to health. The welding fume particles contained therein are dangerous to humans. These can belong to dust fraction A. In this case, the welding smoke particles are alveolar. Class E welding fume particles are inhalable. 95 % of the particulate hazardous substances are generated during welding work from filler materials. These are usually metal oxides during welding work. In addition to particles, welding fumes can contain gaseous hazardous substances. These are produced during machining processes such as gas welding and flame blasting.
Ozone: This hazardous substance is mainly produced when radiation-reflecting materials are welded. These include aluminium sheets and chrome-nickel steels (MIG). Ozone exposure is particularly severe in low-smoke welding (TIG). The hazardous substance is one of the carcinogenic substances mentioned in the list of hazardous substances.
Phosgene: The hazardous substance is produced during welding work at temperatures above 300 °C. The toxic gases released during this process cause a caustic reaction on the mucous membranes and skin.
Carbon monoxide: This hazardous substance is produced during gas-shielded welding with mixed gas due to thermal decomposition or during oxyacetylene welding.
Nitrogenoxide: This hazardous substance is formed at the edge of a flame or arc. Inhalation of nitrogen oxide causes damage to the lungs.
AVEVO offers a suitable extraction solution for extracting welding fume particles. AVEVO welding fume filters effectively extract the particles at the source and ensure a safe and healthy working environment. With AVEVO, you comply with specified limit values.
