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2. A-weighting - Wikipedia

   en.wikipedia.org/wiki/A-weighting

   A graph of the A-, B-, C- and D-weightings across the frequency range 10 Hz – 20 kHz Video illustrating A-weighting by analyzing a sine sweep (contains audio). A-weighting is a form of frequency weighting and the most commonly used of a family of curves defined in the International standard IEC 61672:2003 and various national standards relating to the measurement of sound pressure level. [1]

3. Strob Saw Blade - Wikipedia

   en.wikipedia.org/wiki/Strob_Saw_Blade

   Weyerhaeuser were granted a patent on strob saw blades in 1971, [3] but there has been little improvement in the design since then. [4] The Strob inserts or rakers, have cutting edges which extend outside the two plane surfaces of the blade, but fractionally less than the kerf. These rakers have some important advantages, primarily the ease ...

4. NIOSH Power Tools Database - Wikipedia

   en.wikipedia.org/wiki/NIOSH_Power_Tools_Database

   According to NIOSH, the Power Tools Database "is particularly helpful in determining the 'real-world' noise level of power tools as they are used on the job." [ 1 ] [ 2 ] The database is a part of the much larger Hearing Loss Prevention Research Program conducted by NIOSH.

5. Decibel - Wikipedia

   en.wikipedia.org/wiki/Decibel

   The decibel (symbol: dB) is a relative unit of measurement equal to one tenth of a bel (B). It expresses the ratio of two values of a power or root-power quantity on a logarithmic scale. Two signals whose levels differ by one decibel have a power ratio of 10 1/10 (approximately 1.26) or root-power ratio of 10 1/20 (approximately 1.12). [1] [2]

6. AOL Mail

   mail.aol.com

   Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

7. Cold saw - Wikipedia

   en.wikipedia.org/wiki/Cold_saw

   Cold saws use either a solid high-speed steel (HSS) [3] or tungsten carbide-tipped, resharpenable circular saw blade. [4] They are equipped with an electric motor and often a gear reduction unit [5] to reduce the saw blade's rotational speed while maintaining constant torque. This allows the HSS saw blade to feed at a constant rate with a very ...