Ozone safety Update of SES Guidebook IMPORTANT STEP 1: On your computer switch on speaker STEP 2: Start the Slide Show – click below on icon: STEP 3: when ready click only once on this slide STEP 4: Never click again – just let the slide show run
Review – decision making process Washer Generator and washer Negative pressurePositive pressure Integrated system Generator
New limit values = 0.2 ppm & 0.3 ppm The human toxicological limits are between 0.05 ppm to 0.20 ppm as an 8‐hour time weighted average (TWA). The range of TWAs is dependent upon physical activity: – Heavy work: 0.05 ppm – Moderate work: 0.08 ppm – Light work: 0.10 ppm – Heavy, moderate, or light work (≤ 2 hours ): 0.20 ppm – In our laundries there are very light work load for less than 2 hours per shift (in each 90 minutes the ozone treatment lasts about 15 minutes) so this limit was selected as maximum INSIDE THE MACHINE before door opens. The OSHA Permissible Limits for Short-Term Exposure Limit (STEL) [15 minutes]: 0.3 ppm. This is a good limit as the machine door cannot open above 0.2 ppm so in case external sensor detects 0.3 ppm than it means ozone is leaking somewhere. So with these limits we meet both the newest scientific references and law.
Other elements Same number of sensors A new type of PPE for escape situations Polish O&O completely aligned with the updated requirements – so we are leading so suppliers need to follow us We are not requesting something which is not achievable Corlu needs to separate with e.g. polycarbonate wall the generator only