How to test the sealing of effervescent tubes?

Is your product troubled by the following issues?

Tablets go bad due to the moist or leakage, tablets may damage by transportation and shake.

Xinfuda has rigorous test sealing system, the way of testing the tightness of the tubes and caps:

silica gel desiccant

desiccant spiral cap

Standard experiment: Sealed negative pressure instrument, under 27Kpa, 2minutes

practical test: 40Kpa, 2minutes

Result: There's no water in the bottle or there's no bubbles.

The spring can prevent tablet damage, the tablet should keep some distance from the spring:

The best condition is that the tablet on the top can touch the spring with a little pressure. Then it can prevent the tablets from shaking