FINALS Flashcards
Small container or wafer of explosives material used to ignite the gunpowder
Primer
Ignition or detonation reaction
Percussion
Composition of priming mixture
Potassium chlorate
Antimony sulfite
Fulminate mercury
2 types of primers
Small primer - caliber 38,40 9mm
Large Primer - cal 45
The first to conceive an idea of using detonating compound
Father of percussion
Alexander John Forsyth
1 vent invented by col edward m boxer
Boxer primer
2 vent invented by col hiram berdan
Berdan primer
3 vent
Berdan boxer primer
Early primers
Corrosive
Used at present
Non-corrosive
Priming mixture is crush by blow from the firing pin
Anvil
Highly sensitive mixture of chemical compounds contained in the primer cup
Priming mixture
Piece of small paper or disk of tun foil
Disc
Container of the anvil, dicsk and priming mixture
Primer cup
Set off with a sharp blow
Initiator
Gives up its oxygen
Oxidizer
Burns the gunpowder in a very high rate
Fuel
In order to fire, the gunpowder need to be ignited
Igniting the propellant
Earliest fa that used closed tubes
Cannons
Small aperture drilled
Touchhole
Around the rim
Rimfire
External pin
Pinfire
Combi of rim and pinfire
Peripheral primer
Loc at the center
Centerfire
No rim. With a small teat
Teat-fire
Used by larger military gun
Electric-primmed
Powder charge, propellant, saltpeter, cordite
Gunpowder
Powder that is used in ammunition in the propulsion of projectiles
Gunpowder
A gunpowder in the 19th century
Black powder
First known chemical explosive
Black powder
Unrecognized inventor of gunpowder
Wu ching tsun
English monk and scientist
Roger bacon
German monk
Constantine anklitzen
Invented smokeless gunpowder
Paul vielle
Single basr propellant which was called
Poudre b
Developed smokeless gunpowder - ballistics
Alfred E Nobel
Obtained a patent of modifying smokeless gunpowder - cordite
Frederick Abel & James Dewar
Consists of jet black and shiny grains
Black Powder
Produces small amount of smoke
Smokeless Powder
Principal ingredient of smokeless powder
Guncotton
Slow burning
Long arms
Fast burning
Short arms
1st examination and detection of gsr
1911
Dr. Iturriz, 1st to use paraffin wax to collect gsr
1914
Theodoro Gonzales performed a modified version of the iturriuz test using molten paraffin wax
1931
Positive result of paraffin wax
Blue color or blue specks
As stated by edmond locard. When 2 objects come into contact, exchange of materials take place
Locard’s Principle
Most common trace evidence
Hands
Gunpowder residues that exists on all openings of FA after discharge
Plumes
Use of cotton with 5% nitric acids sol
Cotton swabs
Used for scanning electron microscope
Adhesive stubs
NAA
Neutron Activation Analysis
ICP-MSP
Inductively Coupled Plasma - Mass Spectroscopy Plasma
GFAAS
Graphite Furnace Atomic Absorption Spectroscopy
Detects the presence of nitrate and nitrite
Diphenylamine Test
Detects presence of lead styphnate
Sodium Rhodizonate Test
Detects presence of nitrate in unburned or partially burned gunpowder
Walker Test
Detects nitrites
Greiss Test
Both detects nitrate and nitrite
Marshall and Tiwari Test
Chemical used to indicate the presence of nitrocellulose
Lunge Reagent
Unlawful manufacture etc
RA 8294 Sec 3
Prison mayor to reclusion perpetua and a fine of 50,000
Penalty
Propellant for guns. Undergo deflagration
Low Explosives
Double-base powder. Undergo detonation
High explosives
Extremely sensitive
Primary explosive
Insensitive to shock
Secondary explosive
Blasting agents
Tertiary Explosive
Gunshot shells
Battery cup type
Father of the percussion ignition
Alexander John Forsyth