Hi MINENAZ16
We use the DETEX kit for determining the type of explosive. It is a kit that is simple and without electronics, based on the principle of reagents that react with a sample of explosives and give a colored trace, and according to a comparison with the table, it will tell you whether it is an explosive.
here :
https://explosia.cz/app/uploads/2018/07/Explosia_kat_Speciality_cz.pdf
Akon
Product :
The DETEX® system is based on color reactions of detection solutions with substances such as TNT, RDX. HMX, PETN, TETRYL or inorganic nitrates, chlorates and explosives based on organic peroxides (TATP, TCAP, HMTD), contained in dynamite, smokeless powders, plastic explosives, powder explosives, etc. The DETEX set contains numbered bottles with detection reagent, swab test paper, evaluation table and protective gloves.
I've used it and it's fast and functional...