Glass compositions intended for the production of panes

A window, comprising:

• a first sheet of glass;
• an organic polymer on said first sheet of glass;
• and
• a second sheet of glass on said organic polymer;
• wherein said first sheet of glass comprises a glass composition comprising, in weight percent,
• (a) 0.75 to 1.4% total iron, expressed in the form Fe.sub.2 O.sub.3, and
• (b) 0.25 to 0.32% ferrous iron, expressed in the form FeO, and said glass composition, has a total light transmission factor under illuminant A (TL.sub.A) of at least 70%, a total energy transmission factor (T.sub.E) less than 46%, and a transmission factor for ultraviolet radiation (T.sub.UV) of less than 25%, when said glass composition has a thickness between 3 and 3.3 millimeters,
• wherein said first sheet of glass contains less than 0.1% of Ce oxide and less than 0.1% of Ti oxide.