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.
Exactly what your blood sugar level should be two hours after meals is up for debate. As of 2015, ACE guidelines call for the tightest control, with two-hour readings below 140 mg/dl. The Joslin Diabetes Center and the American Diabetes Association suggest postmeal readings below 180 mg/dl.