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  2. Sound reduction index - Wikipedia

    en.wikipedia.org/wiki/Sound_Reduction_Index

    The most basic index is the Weighted Difference level D w.This index is defined by measuring in decibels (dB), the noise level produced on each side of a building element under test (e.g. a wall) when noise is produced in a room on one side (or outdoors) and measured both in the room where the noise is produced and in the room on the other side of the element under test.

  3. Dishwasher - Wikipedia

    en.wikipedia.org/wiki/Dishwasher

    A dishwasher containing clean dishes. A dishwasher is a machine that is used to clean dishware, cookware, and cutlery automatically. Unlike manual dishwashing, which relies on physical scrubbing to remove soiling, the mechanical dishwasher cleans by spraying hot water, typically between 45 and 75 °C (110 and 170 °F), at the dishes, with lower temperatures of water used for delicate items.

  4. Sound transmission class - Wikipedia

    en.wikipedia.org/wiki/Sound_transmission_class

    Sound Transmission Class (or STC) is an integer rating of how well a building partition attenuates airborne sound.In the US, it is widely used to rate interior partitions, ceilings, floors, doors, windows and exterior wall configurations.

  5. Noise calculation - Wikipedia

    en.wikipedia.org/wiki/Noise_calculation

    Noise experts and some small specialized companies have slowly developed a limited number of calculation tools, which have increased in number and become more user-friendly, covering more application cases, and adding service elements to the noise calculation tools. The noise calculation process is complex in input (gathering data, correctly ...

  6. A simplified guide to buying a dishwasher - AOL

    www.aol.com/news/simplified-guide-buying...

    Buying the wrong dishwasher can mean years of annoyance: It’ll take two hours to wash your plates, making a racket the whole time, and you end up having to hand wash tough stains away anyway.

  7. Noise reduction coefficient - Wikipedia

    en.wikipedia.org/wiki/Noise_reduction_coefficient

    The noise reduction coefficient (commonly abbreviated NRC) is a single number value ranging from 0.0 to 1.0 that describes the average sound absorption performance of a material. An NRC of 0.0 indicates the object does not attenuate mid-frequency sounds, but rather reflects sound energy.

  8. Noise-figure meter - Wikipedia

    en.wikipedia.org/wiki/Noise-figure_meter

    A noise-figure meter could automate that procedure as follows: A gated broadband noise source (such as an avalanche diode) drives the device under test. A measurement is made with the noise source on; another measurement with the noise source off. From those measurements and the characteristics of the noise source, the noise figure can be ...

  9. 13 best dishwasher detergents, according to cleaning experts

    www.aol.com/news/13-best-dishwasher-detergents...

    These dishwasher detergent packs from Seventh Generation, which have a 4.6-star average rating from 10,741 reviews on Amazon, come in a recyclable paper box and the pods are made from 90% plastic ...