Some key elements to look for include: 1  The NFRC Label: National Fenestration Rating Council (NFRC) is a non-profit organization that administers the only independent rating and labeling system for the energy performance of windows, doors, skylights and attachment products.
At one hour, your test falls into the normal, non-diabetic range if your blood glucose remains below 200 mg/dL. Two hours after your meal, blood glucose should remain below 140 mg/dL. A level of over 200 mg/dL at two hours post-prandial -- which means after a meal -- indicates diabetes.
Blood Sugar Levels. Your blood sugar levels rise and fall during your waking and sleeping hours. After at least eight hours of not eating, your blood sugar level is between 70 to 100 mg/dL, MayoClinic.com says. The level elevates after you eat, but drops to less than 180 mg/dL two hours after eating.