4 ms·From OSHA https://www.youtube.com/watch?v=ovSLAuY8ib8 https://www.youtube.com/watch?v=ovSLAuY8ib8by chkaloon 7y agoFrom OSHA https://www.youtube.com/watch?v=ovSLAuY8ib8 https://www.youtube.com/watch?v=ovSLAuY8ib8