Glass tube for pharmaceutical containers and process for the production of a glass tube

A glass tube for pharmaceutical containers, comprising:

• an inner surface at an inner diameter and an outer surface with an outer diameter;
• a first end defining a first closed end;
• a second end defining a second closed end;
• a first location 400 mm from the first end;
• a first intermediate location 15 mm from the first end;
• and
• a ventilation hole at a first vicinity, the first vicinity being between the first intermediate location and the first location,
• wherein the inner surface in the first vicinity has measurable first ToF-SIMS signals, the first ToF-SIMS signals including an Na2F+ signal and an 30Si+ signal,
• wherein the inner surface has an area in the first vicinity that is 36 mm2 or less,
• wherein the first vicinity has a ratio of an integrated Na2F+ signal to an integrated 30Si+ signal of at least 0.10, and
• wherein the integrated Na2F+ signal and the integrated 30Si+ signal are integrated over a depth of 100 nm.