134A Capacity of AC

What is the 134A capacity of the AC on a 1996 S-10.

Thanks in advance for your assistance.

Bob

There's usually a blue and white sticker under the hood somewhere that tells how many pounds(weight) of refridgerant the system needs. R-134a is sold in 12oz. cans by weight(unless it has other additives), and 16oz. is a pound.

EDIT And make sure to vacuum the system for at least 30min. I like to vacuum 30min, let it sit, then vacuum another 30min. then charge OR vacuum, purge with nitrogen, vacuum, charge.