Hello everyone, recently, I have sent one of my sample for 18 month accelerated test but the test was failed due to high TPC value in my sample. I have resend the sample for another 18 month accelerated test, this time the TPC value was around 10^4. I was informed that the number of TPC have high possibility to increase continuously in future. Can I know what the number of TPC will 100% increase continuously and why is that so?