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6
Handling hazardous dusts
When working with power
WARNING
tools, such as when grinding,
sanding, polishing, sawing or for other work pro-
cedures where material is removed, dusts deve-
lop that are both hazardous to one's health and
can spontaneously combust or be explosive.
Contact with or inhaling some dust types can
trigger allergic reactions to the operator or
bystanders and/or lead to respiratory infec-
tions, cancer, birth defects or other repro-
ductive harm.
Examples of such materials which contain
chemicals that can produce hazardous dusts,
are:
– Asbestos and materials containing asbestos
– Lead-containing coatings, some wood types
such as beech and oak
– Minerals and metal
– Silicate particles from bricks, concrete and
other materials containing stone
– Solvent from solvent-containing paint/varnish
– Arsenic, chromium and other wood pre-
servatives
– Materials for pesticide treatment on boat
and ship hulls.
To minimize the unwanted intake of these
materials:
– Use dust extraction matched appropriately
for the developing dust.
– Use personal protective equipment, such as
a P2 filter-class dust protection mask.
– Provide for good ventilation of the workplace.
The risk from inhaling dusts depends on the
frequency how often these materials are wor-
ked. Materials containing asbestos may only
be worked by specialists.
Wood and light-metal dust can
CAUTION
cause spontaneous combustion
or explosions.
Hot mixtures of sanding dust and paint/varnish
residuals or other chemical materials in the fil-
ter bag or the vac filter can self-ignite under
unfavourable conditions, such as sparking from
sanding metal, continuous sunlight or high
ambient temperatures. To prevent this:
– Avoid overheating the material being san-
ded and the power tool.
– Empty the dust collector/container in time.
– Observe the material manufacturer's wor-
king instructions.
Observe the relevant regulations for the
materials being worked.
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