Washington Administrative Code › Title 296 - Labor and Industries, Department of › Chapter 296-155 - Safety standards for construction work › Part G - TOOLS - HAND AND POWER › Section 296-155-36305 - Definitions applicable to this section

Current through Register Vol. 24-14, July 15, 2024
A safety feature designed to prevent a tool from operating
				  when tilted beyond a predetermined angle.
Approved
. Meeting the requirements of this
				  standard and acceptable to the department of labor and industries.
Cased power load
. A power load with the
				  propellant contained in a closed case.
Caseless power load
. A power load with the
				  propellant in solid form not requiring containment.
Chamber (noun)
. The location in the tool into
				  which the power load is placed and in which it is actuated.
Chamber (verb)
. To fit the chamber according to
				  manufacturer's specifications.
Fasteners
. Any pins (unthreaded heads) or studs
				  (threaded heads) driven by powder actuated tools.
Fixture
. A special shield that provides
				  equivalent protection where the standard shield cannot be used.
Head
. That portion of a fastener that extends
				  above the work surface after being properly driven.
Misfire
. A condition in which the power load
				  fails to ignite after the tool has been operated.
Powder actuated fastening system
. A method
				  comprising the use of a powder actuated tool, a power load, and a
				  fastener.
Powder actuated tool (also known as tool)
. A
				  tool that utilizes the expanding gases from a power load to drive a
				  fastener.
Power load
. The energy source used in powder
				  actuated tools.
Qualified operator
. A person who meets the
				  requirements of WAC
				  296-155-36321(1) and
				  (2).
Shield
. A device, attached to the muzzle end of
				  a tool, which is designed to confine flying particles.
Spalled area
. A damaged and nonuniform concrete
				  or masonry surface.
Test velocity
. The measurement of fastener
				  velocity performed in accordance with WAC
				  296-155-36307(1)(m).
Tools
. Tools can be divided into two types:
				  Direct acting and indirect acting; and 3 classes: Low velocity, medium
				  velocity, and high velocity.
*
Direct acting tool
. A tool in which the
				  expanding gas of the power load acts directly on the fastener to be
				  driven.
*
Indirect acting tool
. A tool in which the
				  expanding gas of the power load acts on a captive piston, which in turn drives
				  the fastener.
*
Low-velocity tool
. A tool whose test velocity
				  has been measured 10 times while utilizing the highest velocity combination
				  of:
- The lightest commercially available fastener designed for
				  that specific tool;
- The strongest commercially available power load that will
				  properly chamber in the tool;
- The piston designed for that tool and appropriate for that
				  fastener; that will produce an average test velocity from the 10 tests not in
				  excess of 100 meters per second (328 feet per second) with no single test
				  having a velocity of over 108 m/s (354 ft/s).
*
Medium-velocity tool
. A tool whose test
				  velocity has been measured 10 times while utilizing the highest velocity
				  combination of:
- The lightest commercially available fastener designed for
				  the tool;
- The strongest commercially available power load that will
				  properly chamber in the tool;
- The piston designed for that tool and appropriate for that
				  fastener; that will produce an average test velocity from 10 tests in excess of
				  100 m/s (328 ft/s) but not in excess of 150 m/s (492 ft/s) with no single test
				  having a velocity of 160 m/s (525 ft/s).
*
High-velocity tool
. A tool whose test
				  velocity has been measured 10 times while utilizing the combination of:
- The lightest commercially available fastener designed for
				  the tool;
- The strongest commercially available power load which will
				  properly chamber in the tool; that will produce an average velocity from the 10
				  tests in excess of 150 m/s (492 ft/s).
Statutory Authority: Chapter 49.17 RCW. 94-15-096 (Order
					 94-07), § 296-155-36305, filed 7/20/94, effective 9/20/94. Statutory
					 Authority:
					 RCW
					 49.17.040 and
					 49.17.050. 86-03-074 (Order
					 86-14), § 296-155-36305, filed
					 1/21/86.