f) difference between the background emission sound
pressure level and the workstation sound pressure
level shall be equal to or greater than 6 dB in
accordance with EN ISO 11202:2010, 6.4.1, accuracy
grade 2 (Engineering);
g) correction of the local environmental factor K3A shall be
calculated in accordance with A.2 of EN ISO
11204:2010 with reference restricted to EN ISO
3746:2010 instead of the method given in Annex A of
EN ISO 11202:2010 or in accordance with EN ISO
3743-1:2010, EN ISO 3743-2:2009, EN ISO 3744:2010
or EN ISO 3745:2012 where one of these standards
has been used as the measuring method.
For noise declaration 6.3 ee) shall be met.
For machines access to the part of the saw blade below
the table shall be prevented e.g. enclosed by an exhaust
hood, which shall have an extraction outlet.
As an exception the exhaust hood to enclose the saw
blade below the table for building site saws shall have the
provision to fix an extraction outlet. See Figure 2)
The saw blade guard shall be provided with an extraction
outlet (see Figures 1, 2 and 18).
It shall be impossible to reach the tool through any dust
extraction outlet when the exhaust system is not
connected.
When the opening of the capture device cannot face the
projection, the flow of chips and dust shall be guided
efficiently to the opening of the capture device.
The opening of the capture device shall be large enough
to capture the chips and dust projected.
NOTE 1 The size of the opening of the capture device
depends on the emission pattern and the distance between the
emission source and the opening of the capture device.
The capture device shall be designed in order to minimise
pressure drop and material build up e.g. by avoiding
abrupt change of direction of extracted chips and dust,
sharp angles and obstacles causing a risk for hanging of
chip and dust.
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