Welding Helmet Useful Information
Weldtbl.gif (83829 bytes)
Table obtained from OSHA http://www.itcilo.it/english/actrav/telearn/osh/ppe/oshappe2.htm

table2.gif (219832 bytes)
Table obtained from OSHA http://www.itcilo.it/english/actrav/telearn/osh/ppe/oshappe2.htm