I.S.V.E. Tritotutto 50, Use And Maintenance Instructions

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3 - SAFETY AND ACCIDENT PREVENTION 3-1
I
3 - 7
3.5 ACOUSTIC CHARACTERISTICS: NOISE LEVEL GENERATED
The test was carried out with the machine operating without a load.
In order to measure the noise the machine emits reference was made to the following technical
standards.
EN 12012-1 - Rubber and plastic machines - Size reduction machines - Part 1: Safety
requirements for blade granulators - Annex A: Measurement and declaration of noise emission
values.
S.P.I. NOISE TEST - Noise Measurement Procedure for Granulators, by Society of the Plastic
Industry.
UNI 7712
–
Tool machines
–
Noise measurement in the work place - 1977.
UNI EN ISO 3746 - Acoustics
–
Determination of sound power level of noise sources using sound
pressure. - Survey method using an enveloping measurement surface over a reflecting plane-
1997.
Measuring was carried out sing a BRUEL & KJAER type 2236 sound level meter.
Measurements were taken only from position 1, that is in line with the loading door, where the
most noise is generated.
The noise levels measured were as follows:
80

81 dB(A) machine empty.
Tritotutto
Operator
Position
Loading door
Position for noise
measurements
rilevamefonometrici
Measuring surface
(d=1,0 mm)
Machine test
3
4
2
1
1,0 m
1,0 m