You are seeing reference results for acceptable concentration because there's not a match on Dictionary.com.
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www.life123.com/question/What-Is-Occupational-Exposure
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An occupational exposure limit is an upper limit on the acceptable concentration of a hazardous substance in workplace air for a particular material or class of materials.
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www.teoma.com/ans/is-lead-crystal-safe-to-drink-from
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Health Canada has established a maximum acceptable concentration for lead in drinking water of 10 ppb (parts per billion) in a free flowing sample of water.
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www.life123.com/question/Coliform-in-Drinking-Water
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The coliform group of bacteria is the principal indicator of the sanitary quality of water for domestic, ... Because bacteria are present everywhere, ... Resources for:Coliform in Drinking Water
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www.aapfco.org/rbc_white.pdf
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Scientific Basis for Risk-Based Acceptable Concentrations of Metals in Fertilizers and Their Applicability as Standards. Introduction. The fertilizer industry, the ...
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www.memc.com/assets/file/technology/papers/Browse_Techn...
www.memc.com/assets/file/technology/papers/Browse_Technical_2.pdf
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EXPERIMENTAL METHOD TO DETERMINE AN ACCEPTABLE. CONCENTRATION OF IRON IMPURITY IN HOT ZONE STRUCTURAL. COMPONENTS ...
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www.radon.com/radon/radon_levels.html
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Answers to the question, what levels of radon gas are safe and acceptable.
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www.maca.gov.nt.ca/operations/water/WWMeasure.htm
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The interim maximum acceptable concentration (IMAC) for arsenic in drinking water is 0.025 mg/L. Levels of arsenic in natural waters generally range between ...
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www.engineeringtoolbox.com/co2-comfort-level-d_1024.htm...
www.engineeringtoolbox.com/co2-comfort-level-d_1024.html
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Normal CO2 Levels. The effects of increased CO2 levels on adults at good health can be summarized: normal outdoor level: 350 - 450 ppm; acceptable levels: ...
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www.astm.org/Standards/D7034.htm
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D7034 - 11 Standard Guide for Deriving Acceptable Levels of Airborne Chemical Contaminants in Aircraft Cabins Based on Health and Comfort Considerations ...
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www.idph.state.il.us/envhealth/pdf/DrinkingWater.pdf
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effects. Sulfates cannot be economically removed from drinking water. The following levels of sulfates (SO4. -2) are expressed in mg/l: 0 - 250 Acceptable ...
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