89An employee who uses a powder actuated tool shall
(a)
inspect the tool thoroughly before using it, paying particular attention to the cleanliness of the chamber and barrel;
(b)
load the tool only after inspection reveals that the breech and barrel are free of foreign matter and only to prepare the tool for immediate use;
(c)
use only cartridges and fasteners designed for the tool;
(d)
select cartridges of sufficient power to perform the work without the application of excessive force;
(e)
not use the tool in the presence of flammable or explosive substances;
(f)
not fire a fastener
(i)
through an existing hole unless the tool is specifically equipped by the manufacturer for accurate alignment of the barrel with the hole,
(ii)
into cast iron, glazed brick or tile, marble, granite, slate, glass or any other unusually hard or brittle material,
(iii)
into a steel surface that is of greater hardness than the fastener being used,
(iv)
with a high velocity tool into a hollow concrete block, and
(v)
until the work area has been checked for employees working in proximity to where the fastener is going to be fired;
(g)
when the hardness of a surface is not known, use a hand hammer to drive the point of the fastener into the material and not use the tool on that surface if the fastener does not penetrate the surface;
(h)
if a misfire occurs, continue to hold the tool in a firing position for not less than fifteen seconds and then, until the cartridge has been ejected, keep the tool pointed in a direction which will not cause injury to the user or others;
(i)
wear suitable eye protective equipment of the close fitting eyecup or cover-goggle type;
(j)
return unused cartridges to a proper storage box; and
(k)
operate it in accordance with the manufacturer’s specifications.