This low level of iron removes the greenish-blue tint that can be seen especially on larger and thicker sizes of glass.
[1] Low-iron glass is used for aquariums, display cases, some windows, and other applications where clarity is desired.
[1] Ordinary plate glass has about 10 times as much iron content.
[4] Low iron glass is widely used in solar panels.
[7] Other brand names include "Starlite", "Krystal Klear", "Diamant" and "Eurowhite".