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Noiseletter - Fall 2004, Page 5
BA average, 93 dBA maximum at the left side about 60 feet from the stage 90 dBA average, 97 dBA maximum 70 feet back from central speakers 72 dBA average, 84 dBA maximum at the right ... 60 feet from the stage 87 dBA average, 92 dBA maximum 70 feet back from central speakers 68 dBA average, 72 dBA maximum at NW corner of parking lot 62 dBA average, 71 dBA maximum at W 4th Ave ...
quiet.org

GIAA SOUNDS SOLUTIONS: Measuring Aircraft Noise
A-level (AL) and is measured in dBA (A-weighted decibels). Sound Exposure Level (SEL) – When our sound level meter is measuring the ... sensitive to sound at night) and then the volume is averaged, we arrive at the Average Day-Night Sound Level, or DNL. The DNL is the value that you will most ...
www.pcrguam.com

Leucaena Is Ideal For Carbon Sequestration
Over a lifetime of 70 years, each average American who is responsible for 25 tons per year, will owe a carbon debt of ... , 2005: 011-504-783-0421 Fax: 011-504-783-0554    International Sports Adventure Institute, Inc., DBA ISAI, has no liability for contents or goods on the Internet except as set forth ...
www.satglobal.com

XtractMax Portable Electric Vacuums
The convenient foot-lever access makes for hassle-free emptying of the huge ... 2 / 98 110 / 220 115 lbs 31 x 19 x 29 13 sq ft 78 dba XM-200-E 200 7.2 / 98 110 / 220 120 lbs 31 x 19 ... 6.9 / 95 220 140 lbs 31 x 19 x 46 28 sq ft 70 dba 20/30/55 Gallon Options No Filters Required Removes 90% of dry dust Removes 100 ...
industrialairsolutions.com

Portable Fume Collectors and Dust Collection Systems
(A) levels are an average of a measures made in a laboratory environment. Installed sound levels ... Blower Push-Button Reverse-Pulse Jet Filter Cleaning Low Noise Level - ~70 dbA 70° of Water Maximum Static Pressure 11/14 Gauge Metal Construction ... Options: HEPA, Activated Carbon, Potassium Permanganate Quiet Operation - 72 to 76 dBA Made Completely in the USA! —Back to Top— Yes! ...
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The Mini-Mist Collector by IAS
CFM. Units weigh from only 160 lbs. and operate at only 72 dBA! How the Mini-Mist operates A direct-drive fan pulls dirty air through the inlet ... an excellent choice for machine, repair, tool and die, or job shops with small to average production runs. A standard minihelic gauge indicates when filters need to be changed, and the ...
www.mist-dust-collection.com

League for the Hard of Hearing
Environmental Protection Agency identified an indoor day-night average sound level (DNL) of 45 dBA (equivalent to a night-time average sound level of 35 dBA) to protect against sleep disturbance. Noise & Cardiovascular Changes ...
lhh.org

League for the Hard of Hearing
Health Administration) indicate that continued exposure to noise over 85 dBA will eventually harm hearing. According to OSHA, the exposure time ... time, will cause hearing loss, and exposure to sounds at 115 dBA for just 15 minutes a day, over time, will cause hearing ... when noise exposures are at an eight-hour time-weighted average level of 85 dBA or more, OSHA's Hearing Conservation Amendment 29 ...
lhh.org More from this site

Noise: Terms: Explaining LAeq
LAeq is often used [also written dBA Leq]; this term is the Equivalent Continuous Level. The formal ... average, where noisy events have a significant influence. The results of calculations or measurements Such measurements are designated say 46.3 dBA ... . As with all forms of average it is important to consider the period over which the average is taken; in the above example ...
noisenet.org

NPC Quiet Zone Newsletter Summer 2004
The change will not happen overnight. The average life of the more than 34 million mowers, 14 million riding ... 's new 3000 Ultralight gas-powered generator at 56 dBA at 25 feet-15 dBA less than the quietest gas-powered lawn mower we ... mowers, 15 minutes for the average mowers, and five minutes for the loudest ones. If you are using an average gas-powered mower, unless ...
nonoise.org