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Old 03-29-2014, 07:07 PM
alanauer alanauer is offline
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How do you Measure Noise?

Is there an industry-accepted standard for how noisy a machine is? My 35-year-old Yanmar diesel tractor is comfortably quiet, whereas on my 2-yr-old Grasshopper with a similar engine, I need hearing protectors. I'd like my next machine to be quiet, but no maker gives noise specs. Is that because there aren't any accepted ones?
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Old 03-29-2014, 07:13 PM
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easy-lift guy easy-lift guy is online now
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I believe that the amount of noise produced from any machine will vary, that said always wear head phones or ear plugs period. The cumulative damage is gradual and will occur sooner than later with out protection.
Be smart and protect yourself.
easy-lift guy
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Old 03-29-2014, 08:56 PM
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Exact Rototilling Exact Rototilling is offline
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I'll wear hearing protection when I run a vacuum cleaner in the house. Dead serious. Over time your hearing degrades even with low level background noise. I wear Shure In ear monitors -25dB plus external Peltor H10A's muffs over the top of them. My hats off to those who wear plugs plus muffs.

Part of the equation is the frequency not just the decibel rating.

This is the reason that 85+ year olds who live in primitive tribes/cultures even today have the hearing equivalent of a 30 something person from and industrialized country.
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Old 04-03-2014, 03:22 PM
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JimQ JimQ is offline
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Quote:
Originally Posted by alanauer View Post
Is there an industry-accepted standard for how noisy a machine is? My 35-year-old Yanmar diesel tractor is comfortably quiet, whereas on my 2-yr-old Grasshopper with a similar engine, I need hearing protectors. I'd like my next machine to be quiet, but no maker gives noise specs. Is that because there aren't any accepted ones?

All equipment being manufactured in or shipped into the EU has to conform with the Machinery Directive. There are no limits or requirements for the US.

http://ec.europa.eu/enterprise/secto...s/index_en.htm

Here is the document that describes the measurement method and limits.

http://eur-lex.europa.eu/LexUriServ/...01:0078:EN:PDF

Q
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Old 04-03-2014, 10:16 PM
alanauer alanauer is offline
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Thanks for the advice about hearing protection. And especially the info from Jim because I wouldn't have guessed that Europe was so far ahead of North America (I'm in Canada) on quantifying and controlling machinery noise.
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Old 05-12-2014, 09:50 PM
Terps81111 Terps81111 is offline
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If you have a smart phone there are decibel apps available for free!
Quote:
Originally Posted by alanauer View Post
Thanks for the advice about hearing protection. And especially the info from Jim because I wouldn't have guessed that Europe was so far ahead of North America (I'm in Canada) on quantifying and controlling machinery noise.
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