ASA, ISO ve ANSI KALİBRASYON STANDARTLARI

Kalibrasyonlar, 1951 yılında ASA, 1964 yılında ISO 1964 ( International Standarts Organization) ve 1969 yılında ANSI 1969 ( American National Standarts Instıtute ) tarafından oluşturulan protokollere göre yapılmaktadır. Odyolojik ölçümlerde stabilitenin sağlanması için uluslararası standartlara uygunluk gerekir. Tablo1: ASA z. 245. 1951 değerleri 60 Hz 60 dB SPL = 0 dB HL 125 Hz 51.8 dB SPL = 0 dB HL 250 Hz 39.5 dB SPL = 0 dB HL 500 Hz 24.1 dB SPL = 0 dB HL 1000 Hz 17.2 dB SPL = 0 dB HL 1500 Hz 18.0 dB SPL = 0 dB HL 2000 Hz 18.0 dB SPL = 0 dB HL 3000 Hz 15.6 dB SPL = 0 dB HL 4000 Hz 14.3 dB SPL= 0 dB HL 6000 Hz 19.5 dB SPL = 0 dB HL 8000 Hz 26.8 dB SPL = 0 dB HL 10000 Hz 30 dB SPL = 0 dB HL 12000 Hz 40 dB SPL = 0 dB HL 14000 Hz 50 dB SPL = 0 dB HL 16000 Hz 50 dB SPL = 0 dB HL 18000 Hz 50 dBS PL = 0 dB HL Tablo2:ISO r.389. 1964 değerleri 60 Hz 60 dBSPL =0dBHL 125 Hz 42.8 dBSPL =0dBHL 250 Hz 24.5 dBSPL =0dBHL 500 Hz 10.1 dBSPL =0dBHL 1000 Hz 7.2 dBSPL =0dBHL 1500 Hz 8.0 dBSPL =0dBHL 2000 Hz 9.5 dBSPL =0dBHL 3000 Hz 7.1 dBSPL =0dBHL 4000 Hz 8.3 dBSPL =0dBHL 6000 Hz 10.0 dBSPL =0dBHL 8000 Hz 15.3 dBSPL =0dBHL 10000 Hz 30 dBSPL =0dBHL 12000 Hz 40 dBSPL =0dBHL 14000 Hz 50 dBSPL =0dBHL 16000 Hz 50 dBSPL =0dBHL 18000 Hz 50 dBSPL =0dBHL Tablo3: ANSI (Amerikan Standartları Enstitüsü ) 1969 değerleri 60 Hz 60 dBSPL =0Dbhl 125 Hz 45.5 dBSPL =0Dbhl 250 Hz 24.5 dBSPL =0Dbhl 500 Hz 11.0 dBSPL =0dBHL 1000 Hz 6.5 dBSPL =0dBHL 1500 Hz 6.5 dBSPL =0dBHL 2000 Hz 8.5 dBSPL =0dBHL 3000 Hz 7.5 dBSPL =0dBHL 4000 Hz 9.0 dBSPL =0dBHL 6000 Hz 8.0 dBSPL =0dBHL 8000 Hz 9.5 dBSPL =0dBHL 10000 Hz 30 dBSPL =0dBHL 12000 Hz 40 dBSPL =0dBHL 14000 Hz 50 dBSPL =0dBHL 16000 Hz 50 dBSPL =0dBHL 18000 Hz 50 dBSPL =0dBHL