Listing ID #3917793
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Contact Supplierper ASTM C423-90a | |||||||
125Hz | 250Hz | 500Hz | 1KHz | 2KHz | 4KHz | NRC | |
2″ | 0.15 | 0.17 | 0.49 | 0.73 | 0.66 | 0.68 | 0.50 |
3″ | 0.44 | 0.48 | 1.19 | 1.12 | 1.16 | 1.16 | 1.00 |
4″ | 0.39 | 0.60 | 1.21 | 1.14 | 1.16 | 1.13 | 1.05 |