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MERCANTA

www.mercanta.com over protected and that a suitable product is chosen for the job. With this in mind 3M EAR and 3M Peltor have devised this easy-to-use selection system that aids the correct choice of protection for the noise level. This system uses a simple, logically coloured classification to make the selection process easy. Firstly find out what your noise level is, then look at the above icons and establish which band (RNR) the noise level falls into. Take note of this icon and choose from the products over the next few pages ensuring that this symbol is displayed alongside. Ear muffs may also be used electronic level dependent with a build-in active electronic technology that amplifies quiet sounds to an audible level, while harmful noise is reduced. Legislations for further information: The EN 352:2002 standard is divided into several subgroups: EN 352 Part 1 Ear muffs EN 352 Part 2 Ear plugs EN 352 Part 3 Helmet mounted ear muffs EN 352 Part 4 Level dependent ear muffs EN 352 Part 5 Active noise reduction ear muffs EN 352 Part 6 Ear muffs with telcom EN 352 Part 7 Level dependent ear plugs EN 352 Part 8 Entertainment audio ear muffs EN 397:2012 Industrial Safety Helmets EN 812 Bump Caps EN 14052:2013 High Performance Industrial Helmets EN 458 Criteria for selection, use, care and maintenance of hearing protection equipment or or or 3Mâ„¢ Peltorâ„¢ Optime Alert System Average noise level detected Ideal for high frequency noise Ideal for high & medium frequency noise Ideal for all noise frequencies up to 110 dB (A) Ideal for highIdeal for high frequency noisefrequency noise Ideal for high frequency noise Ideal for highIdeal for high frequency noise Ideal for high frequency noisefrequency noise Ideal for highIdeal for highIdeal for high frequency noisefrequency noisefrequency noise Ideal for all noise frequencies up to 110 dB (A) Ideal for all noise frequencies up to 110 dB (A) Ideal for all noise frequencies up to 110 dB (A) frequencies up tofrequencies up tofrequencies up to Ideal for high & medium frequency noise Ideal for high & medium frequency noise Ideal for high & medium& medium frequency noise 95 + dB (A) 87 - 95 dB (A) 87 - 93 dB (A) 83 - 93 dB (A) 83 - 85 dB (A) 80 - 85 dB (A) 3M products with these icons are suitable More accurate noise assessment required 31

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