3M Version A: QE7052, BK4936 manual Table A.41, Iec

Page 31

Linear Operating Range

1/3 Octave Band

Table A.41 (continued)

IEC 61672

Range 10 dB to 100 dB

			LEQ C
	SPL C Weighting		Weighting
Frequency	Linear Operating		Linear Operating
	Range (dB)		Range (dB)
31.5	25	105	25	105
1000	22	105	22	105
4000	24	104	24	104
8000	25	105	25	105
12500	29	105	29	105

Range 20 dB to 110 dB

				SPL C		LEQ C Weighting
	Frequency		Weighting
			Linear Operating			Linear Operating
			Range (dB)			Range (dB)
31.5		29			115	28	115
1000		25			115	24	115
4000		25			114	25	114
8000		27			115	27	115
12500		30			115	30	115

Range 30 dB to 120 dB

		SPL C
	Weighting			LEQ C Weighting
Frequency	Linear Operating			Linear Operating
	Range (dB)			Range (dB)
31.5	36		125	36	125
1000	33		125	33	125
4000	34		124	34	124
8000	36		125	36	125
12500	39		125	38	125

IEC 61672

Range 40 dB to 130 dB

			LEQ C
	SPL C Weighting		Weighting
Frequency	Linear Operating		Linear Operating
	Range (dB)		Range (dB)
31.5	46	132	46	132
1000	43	132	43	132
4000	44	132	44	132
8000	46	132	46	132
12500	49	132	49	132

ANSI S1.4

Range 10 dB to 100 dB

	Frequency		LEQ C Weighting
			Linear Operating Range (dB)
31.5		28		105
1000		24		105
4000		24		104
8000		27		105

Range 20 dB to 110 dB

	Frequency		LEQ C Weighting
		Linear Operating Range (dB)
31.5		28		115
1000		25		115
4000		25		114
8000		28		115
	Range 30 dB to 120 dB
	Frequency		LEQ C Weighting
		Linear Operating Range (dB)
31.5		36		125
1000		33		125
4000		34		124
8000		36		125

ANSI S1.4

Range 40 dB to 130 dB

	Frequency		LEQ C Weighting
			Linear Operating Range (dB)
31.5		46		132
1000		43		132
4000		44		132
8000		46		132

053-469 RevC

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