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Test A should always be used prior to Test U
Black-powders
it can be used to test liquid residue in any form
leaving a dark
No light source is required for viewing
Gunshot Residue Kit (GSR), AA Weight|1oz Test A should always beFor Atomic Absorption Analysis. Atomic Absorption test supplies consist of cotton swabs in tubes and a liquid chemical. The liquid is put on the cotton swabs and rubbed on the suspected shooters hands. The cotton swabs are then placed back into the tubes and sent to the lab for analysis. Each kit is individually sealed and contains instructions, plastic gloves and an envelope and evidence label for resealing.
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