Hypertherm HyIntensity Fiber Laser Rev.3 - Manual (Page 20)

safety
S-10 H ypertherm Fiber Laser Instruction Manual – 807090 Revision 3
B. The OEM laser cutting end product recommended maintenance and cleaning schedules and procedures shall
be followed.
C. Adequate and suitable storage facilities for respirators shall be provided.
D. A person with the appropriate skills and knowledge shall be assigned to examine respirators and carry out the
tests or procedures necessary to ensure that they serve their intended purpose; and ensure that the respirators
fit the individual workers correctly and are appropriate for their intended purpose.
E. The employer shall provide training and instruction for workers and supervisors on the proper use, care,
maintenance, and storage of respirators.
For fume and gases air sampling, where concentrations of airborne fume contaminants are to be determined by
sampling of the atmosphere, sampling shall be tested using the NIOSH methodology, other recognized methods, or the
guidelines of the authority having jurisdiction. When a helmet is worn, the samples shall be collected inside the helmet
in the operator’s breathing zone. The occupational exposure limits shall comply with the regulatory authority having
jurisdiction. Contaminant and fume analysis in the lab is covered under two areas:
A. Total welding fume particulate (mg/m3).
B. An elemental analysis of each contaminant (mg/m3). The contaminant particulate and fume testing is important
to determine the exposure risk to personnel.
Confined spaces
Confined spaces are defined specifically in the codes and regulations that apply to each work project. Confined spaces
need to be considered when the access or egress of personnel is restricted and there is a potential for the accumulation
of a hazardous gas, fume, vapor, and dust, or the development of an oxygen-deficient or oxygen-enriched atmosphere
that is likely to affect the health and safety of a worker.
If needed, the body responsible for the implementation of workplace / laser safety at the installed site shall have written
rescue procedures for confined space emergencies. Before the operator or service personnel enters a confined
space to undertake any welding, cutting, or allied process, the personnel shall be informed of and understand the
hazards of the confined space and receive instruction on safe procedures for entering, working in, and exiting from
the confined space.
Before a person enters a confined space, a leak test should be done on all joints of any hose or pipelines that have the
potential to introduce gases into the confined space. This leak test is done in order to eliminate the possibility of gases
being introduced into the confined space.