Activation powder, or commonly known as HU2 powder or SSD solution powder is a type of humine laboratory powder that is used in the process of security coated defaced notes (SCDN) cleaning, to assist with the heating or reactivation of the DFX banknotes prior to the use of SSD solution chemicals on the notes.

Often, the use of activation powder is needed in a cleaning process when a DFX banknote has been stored for sometime and likely to have contracted the B-virus.

A code is probably a writing, written by a party, to be read and understood by another party(s). Most of the times a code is written by the use of numbers, letters and symbols which signifies or mean something in particular from the receiving party.

In short words, a code is a secret written or visible signs demonstrated by John, to be understood by Peter only, which even if Jane sees the content of the code, she can not comprehend what it means, excepts Peter explains it to her. Finally, a code can only be understood within the parties with the decoding key.

Between the automatic SSD chemical and universal SSD chemical, each of them are quiet important in their various domain of DFX banknotes cleaning process, as they equally varies in features, qualities, as well as prices per liter.

– The automatic SSD chemical, as its name implies, it is a DFX banknotes cleaning solution chemical that does the job automatically and immediately once the automatic SSD chemical is pour on the security coated defaced notes, or SCDN.

– While on the other hand; The universal SSD chemical, is a special type of DFX banknotes cleaning solution chemical that literally works on all security coated defaced notes, or SCDN, irrespective of the notes type, such as; coating color (black, green, pink, white, or stamp), duration of defaced notes, currency and denomination types, and other similar DFX banknotes criteria’s.

Unlike the automatic SSD chemical that can only clean a specific type of DFX notes, the universal SSD chemical can clean all types of DFX banknotes species. But automatic SSD chemical does the job with little-to-no effort, whereas with the universal SSD chemical, the cleaning must be done manually with hands.

As of this moment; There is no chemical formula for air, as in its absolute state, it is a mixture of multiple compounds. The major components would be Nitrogen (N2), Oxygen (O2), Carbon Dioxide (CO2), Water (H2O), and many others in minute amounts. Nitrogen makes up 78.1% of air, while oxygen makes up 20.9% of air.