Средства индивидуальной защиты Hoffmann Group 2026 - страница 128

GBP 57 INFORMATION ABOUT RESPIRATORY PROTECTION Certain standards are applicable for various respiratory protection Filter products within the European Union. EN 143 Particle filters Each product must be tested and certified for compliance at an independent centre, in order to ensure the protection of the EN 14387 Gas and combination filters user. The statutory regulations in Germany for the use of respiratory protection equipment are governed by DGUV 112 –190. Masks/respiratory protection Filtering half masks Respiratory protection comes under PPE category III for protection EN 149 to protect against particles against risks of “death and irreversible damage to health”. EN 405 Valved filtering half masks This places a duty on the employer; employees who use respiratory to protect against gases or gases and particles protection must be instructed at least once a year in the theory and EN 140 Half-face masks practice of the use of respiratory protection. EN 136 Full-face masks Powered filtering devices EN 12941 incorporating a helmet or a hood Filtering devices with hood for escape EN 403 (e.g. from fire) Contact your PPE specialist adviser at the Hoffmann Group, to obtain support in performing instruction. For an innovative instructional video with all to points to be covered during instruction and a clear guide to correct use of respiratory protection: see our YouTube channel “Hoffmann Group”. You can order a free poster from us, with a lot of important information on correct respiratory protection (Article No. KP3000 size AIR). The workplace concentration limit (AGW) is the maximal permissible average Particle concentrations are measured in mg/m3, gas concentrations are concentration of a hazardous substance during normal working hours (8 h/day, measured in ppm or mg/m3. 40 h/week). It indicates the concentration of a substance above which acute or The limit value of a particular substance in the air thus depends on the prevailing chronic injurious effects on health are to be expected. The general dust limit total burden and on the chemical composition. value (AGSW) for dust particles is 1.25 mg/m³. As soon as this value is exceeded If there is no specific limit value, the AGSW is applicable. at a workplace, appropriate protective measures must be introduced. In principle of course: the fewer pollutants breathed into the lungs, the better. Limit values of pollutants in the air* Acetone 1,200 mg/m³ Ethanol 380 mg/m³ Chlorine 1.5 mg/m³ The limit values* per cubic metre of air vary depending on the characteristics The diagram above shows for instance that a small quantity of chlorine of the substance concerned. The various substances are hazardous to the (1.5 mg/m³) causes lasting damage to the lungs, whereas an acetone organism to different degrees. concentration as great as 1,200 mg/m³ is still harmless. * The limit values shown here apply to Germany. For comprehensive information on the topic of respiratory protection including tables of the limit values prevailing in many European countries we recommend our respiratory protection brochure. 128