BODY ARMOR TEST Laboratorium Alat dan Material Khusus Almatsus
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SPEKTEK ALAT LABORATORIUM PENGEMBANGAN INDUSTRI TEKNOLOGI KEPOLISIAN KSA T.A. 2011.
Helmet is mounted to head figure which is mounted to a track that produce hit point is same for several tests. Pounce material hardness is 60 HRC with pounce area is formed by an arc
with 20mm radius. Equipped with accelerometer that can measures 600g in 1msec and can be detachable for other measurements. All parts which made of steel should made from
stainless steel or hot dipped galvanize in case of the possibilty of paint removal is high.
b. Penetration Resistance Test. To determine the helmet strength against sharp ended objects.
The equipment is consisted of stabbing system, head figure as helmet mounting, and sensor for determine whether helmets are perforated or not. Stabbing system could produce 90 Joule
energy when stabbing. Stabber must have 60 HRC hardness and the tip point dimension are 0.5mm radius at 60 degree. Helmets mounting are form as similar as human’s head to give
the better simulation. Sensor should be able to giving signals when the penetration is able to pierce the helmets or when it is not. All parts which made of steel should made from stainless
steel or hot dipped galvanize in case of the possibilty of paint removal is high.
c. Tension Test. Determine the strength of tightening rope of the helmets by giving tension to
rope when it is locked. The strength is determined by observing the elongation of rope. Consisted of the pulling system and head figure as helmets mounting. Pulling system is
operated by air pneumatic and can produce force Initial force of 25kgf to be held for certain times, and Advanced force of 150kgf to be held for another certain times. Equipped with
elongation gauge or distance meter to determine and record the elongation of rope at initial and advanced force.
d. Face Shield Drop Test. Face Shield Drop test giving a hit to face shield of the helmet and
observing the after effect for the user. Face Shield Drop test consisted of pounce system and head figure as helmet and sensor mounting. Pouncer system could produce energy of 10
Joule. Pouncer is mounted to a track that led the pouncer to hit the same position of the face shield for several tests. Pouncer material hardness is 60 HRC with pouncer area is half
spherical of 45mm diameter. Helmets must be mounted so the pouncer will hit the face shield perpendicularly. Sensor is set to measure deflection and positioned behind the face shield at
the exact position the pouncer hit. All parts which made of steel should made from stainless steel or hot dipped galvanize in case of the possibilty of paint removal is high.
e. Light Transmission Test. Light Transmission test to compare light intensity with and without
passing the face shield. Light Transmission test consisted of light source, luxmeter, face shield mounting, and dark room. Light source, face shield mounting and luxmeter are positioned as
one optic path and the distance between those components can be adjust easily. Light source, face shield mounting and luxmeter shoule be enclosed by a box to perform as dark room. The
box should be able to open easily and the inner material is made of non-reflecting material and painted black.
f. Completed with operation procedure.