BS EN 50332-1:2013 Sound system equipment: Headphones and earphones associated with personal music players. Maximum sound pressure level measurement methodology. General method for "one package equipment"
2013BS EN 50332-1:2013 Sound system equipment: Headphones and earphones associated with personal music players. Maximum sound pressure level measurement methodology. General method for "one package equipment"
2000BS EN 50332-1:2000 Sound system equipment - Headphones and earphones associated with portable audio equipment - Maximum sound pressure level measurement methodology and limit considerations - General method for "one package equipment"