Izvo zvisina kukodzera mamiriro ezvehutano zvakanyorwa pasi apa. Rudzi rweMarudzi Rwenyika rweDaase (ICD) nhamba dzakanyorwa mumakabhesi anotevera maitiro ose.
Zvinokonzera kurambwa kwekugadzwa, kunyora, uye kuburitswa (pasina kuregererwa kwakagamuchirwa ) ndeyechokwadi chakaitika che:
a. Audiometers, yakaiswa kumiganhu ye International Standards Organization (ISO 1964) kana American National Standards Institute (ANSI 1996), ichashandiswa kuedza kunzwa kwevose vanoedza.
b. Zvose zvinyorwa zvemasvomometric kana kuverenga kwemazwi ezeremberi zvakanyorwa pamishumo yekuongororwa kwezvokurapa kana mamwe marekodhi ezvokurapa achajekeswa zvakajeka.
c. Acceptable audiometric hearing level (zvose nzeve) ndeizvi:
(1) Inzwi rakachena pa500, 1000, uye 2000 maitiro nechikamu chemashekeri makumi matatu (dB) paavhareji (imwe nzeve), pasina mumwe munhu wepamusoro kupfuura 35dB pane izvi.
(2) Nhamba yekutaura yakachena kwete kudarika 45 dB pa 3000 maitiro kubva pachipiri nzeve imwe neimwe, uye 55 dB pane 4000 maitiro nemakondi imwe neimwe nzeve.
Derivedzwa kubva kuDhipatimendi Rekuchengetedza (DOD) Directive 6130.3, Physical Standards for Appointment, Inlistment, uye Induction, uye DOD Mirayiridzo 6130.4, Criteria uye Zvirongwa Zvinodiwa zvePhysical Standards for Appointment, Inlistment, kana Kuchengetedzwa muHondo Dzemauto .