Type I

Neutral glass, a   borosilicate glass containing significant amounts of boric oxide. With a high   hydrolytic resistance due to the chemical composition of the glass itself. (moulded   glass vial, and tubular vial)

Suitable for most   preparations whether or not for parenteral use(injection use)

Type II

Soda-lime glass with   sulfur treatment, with a high hydrolytic resistance resulting from suitable   treatment of the surface of glass vial (only moulded glass vial)

Suitable for most   acidic and neutral, aqueous preparations whether or not for parenteral use.  

Type III

Soda-lime glass, with   only moderate hydrolytic resistance (only moulded glass vial). Some factories   use amber tubing glass container for oral use.

Generally suitable   for non-aqueous preparations for parenteral use, for powders for parenteral   use(not including freeze-dried preparations), and for preparations not for   parenteral use.