Density – convert units?
Hello everyone, Do I have the conversions correct here? In the 3rd task it should say kg/ml at the front. Thanks again in advance Kind regards, Clara
Volatile organic compounds (VOCs)?
Hello, I have an air quality meter and the total VOC value is given as intensity on a scale of 1 to 100. Many sources cite VOC limit values as ppb (parts per billion) units. How do I convert the total VOC value to ppb?