Acoustic Solutions Acoustic Solutions Brochure - Page 9

Name Cameron In The Dark Black White Knight Nightline Shimmer Midnight Usage Wide Width Light Reduction Drapery Acoustic Drapery Light Reduction Drapery, Acoustic Properties Light Reduction Drapery, Acoustic Properties Light Reduction Drapery, Acoustic Properties Light Reduction Drapery, Acoustic Properties Width 280cm approx. 150cm approx. 152cm approx. 148cm approx. 150cm approx. 147cm approx. Pattern Repeat n/a n/a Depends on print Depends on print Depends on print Depends on print Composition Polyester FR Polyester Polyester Polyester Polyester Polyester Flammability AS/NZS 1530 pt 2 AS/NZS 1530 pt 2 & 3 AS/NZS 1530 pt 2 & 3 AS/NZS 1530 pt 2 & 3 AS/NZS 1530 pt 2 & 3 AS/NZS 1530 pt 2 & 3 NRC Rating 0.71 0.62 0.59 0.68 0.71 0.58 Colours Available 3 1 1 1 1 1 Link www.materialised. www.materialised. com/products/ com/products/in- cameron the-dark Print Compatible Fabric Care No No www.materialised. com/products/ white-knight Yes www.materialised. www.materialised. www.materialised. com/products/ com/products/ com/products/ nightline shimmer midnight Yes Yes Yes Mat 4. Warm Wash. Tumble dry at moderate temperature, ramping down to cool. Moderate iron. Dry clean 30. Possible shrinkage 3%. Important: Do not wash or dry with any other articles. Acoustic Results – Sound Absorption Rates To quantify our fabrics as commercial acoustic solutions, each is tested and awarded an NRC (Noise Reduction Coefficient) rating. The NRC relates to the absorption effectiveness of the material, and is calculated by averaging how absorptive a material is at 4 different frequencies: 250hz, 500hz, 1000hz and 2000hz. Taking this average number, it is then applied it to the NRC scale of 0 to 1. A perfectly sound absorptive material achieves a 1, whereas a 0 indicates no absorption. With the fabric positioned approximately 15 to 20cm from the window or wall, researchers found that it could absorb up to five times as much sound as a typical lightweight fabric. At low frequencies, around 200hz, it absorbed no more than about a fifth of the incidental sound energy. However, at frequencies of about 500hz (human ears have a maximum sensitivity between about 3000-4000hz), the fabric absorbed about three quarters of the incidental sound energy. Frequency Hz Cameron Shimmer Nightline White Knight Midnight In Th e Dark 250 0.52 0.48 0.43 0.49 0.42 0.40 500 0.95 0.96 0.93 0.82 0.82 0.89 1000 0.74 0.75 0.71 0.53 0.56 0.63 2000 0.64 0.65 0.63 0.52 0.54 0.58 Mean Result 0.71 NRC 0.71 NRC 0.68 NRC 0.59 NRC 0.58 NRC 0.62 NRC