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AD629 - Instructions for Use - EN Page 53
DD45 (G
F
-G
C
) PTB-DTU report 2009-2010.
TDH39 (G
F
-G
C
) IEC60645-2 1997.
HDA280 (G
F
-G
C
) PTB report 2004
HDA200 (G
F
-G
C
) ANSI S3.6 2010 and ISO 389-8 2004.
HDA300 (G
F
-G
C
) PTB report 2013.
DD450 (GF-GC) ANSI S3.6 2018 and ISO 389-8 2004.
IEC Speech level IEC60645-2 1997 (acoustical linear weighting)
IEC Speech Equivalent free field level (G
F
-G
C
) from IEC60645-2 1997 (acoustical equivalent sensitivity weighting)
IEC Speech Not linear level 1 kHz RETSPL (DD45-TDH50-HDA200-HDA300) and EAR 3A – IP30 - B71- B81 IEC60645-2 1997 (no
weighting)