Total deafness definition
Total deafness means that the claimant's bilateral average hearing threshold level is 90dB or more, averaged over 1, 2 and 3kHz, as measured by appropriately calibrated equipment meeting British Standards, operated by trained staff, and using quality assured pure tone audiometry; “Total deafness in one ear” means that the average hearing threshold is 90dB or more averaged over 1, 2 and 3kHz as measured by appropriately calibrated equipment meeting British Standards, operated by trained staff, and using quality assured pure tone audiometry.
Total deafness means that the claimant's bilateral average hearing threshold level is 90dB or more averaged over 1, 2 and 3 kHz as measured by appropriately calibrated equipment meeting British Standards, and using quality assured pure tone audiometry;
Total deafness means that the claimant’s bilateral average hearing threshold level is 90dB or more averaged over 1, 2 and 3 kHz as measured by appropriately calibrated equipment meeting British Standards, and using quality assured pure tone audiometry;