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.