R 408.41936 Cleaning with compressed air.

Rule 1936. (1) Compressed air shall not be used for blowing dirt or dust from the hands, face, or clothing. (2) Air pressure at the discharge end of a portable air gun or hose used for cleaning shall not exceed 30 pounds per square inch gauge (p.s.i.g.), except the pressure may exceed 30 p.s.i.g. when sandblasting, cleaning concrete forms, or for joint cleaning. When air pressure exceeding 30 p.s.i.g. is used for concrete forms or joint cleaning, a pipe extension of not less than 4 feet shall be used at the end of the hose. (3) When air under pressure is used to remove chips or dust, a chip guard, such as a fixed or removable shield, safely located, shall be provided to protect the operator and any employee in an adjoining area. (4) The employee using air under pressure shall use personal protective equipment provided for and as prescribed in Construction Safety Standard Part 6 “Personal Protective Equipment,” as referenced in R 408.41902, to protect against hazards created by the operation.