Sparklike devices are quantitative tools that measure noble gases concentrations in insulating glass. The correlation of the measurement to a pass/fail criterion is entirely left to the user to conclude and cannot be made on the user’s behalf. Sparklike devices can be used to determine a noble gas (Argon/Krypton, etc.) concentration as a percentage. Successive measurements taken from the same subject IG can quantify gas loss percentage. If rapid loss of gas is detected, it would mean the hermitic seal of the insulating glass unit has been breached either temporarily or permanently. Insulating glass units have an expected gas loss through permeability that is around 0-1-2% per year. Insulating glass units go through what is known as burst losses, that is when the environmental conditions surrounding the IG forces the gas to vent through the seal, and the seal would then reclose preventing further gas from escaping.