PRD-000126
Special Purpose Ear Muffs which should allow one to hear the outside sounds clearly and safely on push of a button. After 30 seconds the muff should automatically return to its FULL protection mode. Thus allowing employees to listen safely without removing the muff
Should provide a mean attenuation of up to 26dB, Mean attenuation data should be measured as per ANSI S3.19-1974, Should be a Class A Earmuff as per CSA Classification, i.e. based on octave band attenuation values listed in table 3 of Canadian Standard Z94.2-02, Should provide an attenuation of 35.3dB, when measured at 8000 Hz frequency and 38.6 dB at 1000 Hz Frequency.
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