Sec. 7.20. On boilers connected with one another by what is known as headerlines, all valve connections thereto shall be closed and securely fastened while the boiler or b.
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/il/chapter-225/act-705/7-20A research copy — for the controlling text, always check the official state or federal source. Not legal advice.
Sec. 7.20. On boilers connected with one another by what is known as headerlines, all valve connections thereto shall be closed and securely fastened while the boiler or boilers are being washed, cleaned, or repaired for the protection of the person so engaged.