Hello Raju bro

I am happy to see here.

I will direct you as per my knowledge,If any thing wrong means I am sorry.

Packing play important role on item.

Improper packing leads failure of item.

Packing of RP item.

First pack with white paper(quantity based on item weight)

then pack with carbon paper(quantity based on item weight)

again pack with white paper(quantity based on item weight)

then pack with carbon paper(quantity based on item weight).

In between use plastic tape.

Later pack with tube.

Later keep item in thermalcole box and seal with packing tape.

Why the duration of the (second time) test longer than the first one

Because may be improper packing.

Any exact timings for the accurate result?

Usually Genuine rp takes time minimum seconds and maximum below 5 minutes.

I cleaned them with detergent powder only once and wrapped in a black carbon paper and then into a cotton peice, then again wrapped into a black carbon.

Use only mineral water for cleaning.Don't expose to power(electricity).

RP items may be diff feature on diff items.

Any thing you can ask.