The helmet?s shell is the rigid outer section of the helmet, and is usually made from polyethylene, ABS (Acrylonitrile Butadiene Styrene ? a thermoplastic) or fibreglass hardened with polyester resins The basic function of the shell is to provide protection by reducing the force of a falling object striking or impacting on the users head. Depending on its design, the shell can have a peak, a brim or a rain gutter, ventilation openings, or attachment devices for eye and face protection and ear protectors.
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Uniformity of Dosage Units
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Uniformity of Dosage Units is a specialised analytical laboratory service that assesses whether individual dosage units contain sufficiently consis...
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