Question: ppm and ppb are: A) toxic chemicals. B) chlorinated hydrocarbons. C) wastewater treatment strategies. D) types of polymer E) none of the above Parts-per Notation: In scientific calculations, certain values are expressed as parts-pe...
Food Safety: Aflatoxins, toxic compounds produced by certain molds, are regulated in foods, with limits often in the range of parts per billion (ppb), which is even smaller than ppm (1 ppm = 1000 ppb). For example, the FDA action level for aflatoxins in corn intended for human consumptio...
Select % or PPM (PPB is available with GPR-1600-UHP analyzer only). SPAN GAS * Enter as PPM Enter as % Auto Range 85⁰F 100Kpa 0 to 10 PPM 12/31/2011 12:00:00 After selecting the calibration gas units, following screen will appear. 080.00 PPM Press UP or DOWN keys to change ...
Question: The EPA drinking water standard for toluene is 3 mg/L. What is this concentration in ppm? A) 0.003 B) 0.3 C) 3 D) 3000 Parts Per Million: Parts per million (ppm) is one way of expressing the concentration of a solute in a s...