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Example of Declared dual-number noise emission values:
Machine model number. operating conditions. and other identifying information:
Model JWP-12L, 50 Hz, 230 V, rated load
Measured A-weighted
in decibels
Uncertainty, K
wA,
Measured A-weighted emission sound pressure level, L
(ref. 20 µPa} at the operator's position, in decibels
Uncertainty, K
in decibels
pA,
Values determined according to noise test code given in EN ISO 3744.
NOTE - The sum of a measured noise emission value and its associated uncertainty represents
an upper boundary of the range of values which is likely to occur in measurements.
DECLARED DUAL-NUMBER NOISE EMISSION VALUES
in accordance with ISO 4871
sound power level,
L
(ref.
wA
1
pW).
in decibels
pA
General operating mode
106(dB)A
2
96(dB)A
2
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