Heat distribution unit. The Heat Distribution Unit (HDU), also known as a Heat Interface Unit (HIU), provides domestic hot water (DHW) and space heating to properties that are serviced from district heating or centralised boiler plants.
Called hypoglycemia, this deficiency of glucose in the blood is considered critical at, or below, 40 milligrams of glucose per deciliter of blood, or 40 mg/dL. However, this figure must be adjusted individually, as the exact level at which an a person develops symptoms varies.
To be acceptable at least 95 percent of the results have to be within plus or minus 15 mg/dl at blood glucose levels below 100 mg/dl and within plus or minus 15 percent at blood glucose levels greater than or equal to 100 mg/dl. Ten of the 12 meters that Dr. Freckmann and his team evaluated met the higher standard.