Abstract: A barrier sleeve usable with a protective gown, the barrier sleeve having a tubular cuff section including a cuff material and having a cuff section first end and a cuff section second end, and a tubular gasket section having a gasket material, the gasket section having a gasket section first end at the cuff section second end and a gasket section second end, the gasket material also including a gathered material and/or an extensible material, and the gasket material having a first thickness and able to exhibit a change in thickness upon compression of at least about 40%. Also disclosed are systems having the barrier sleeve, methods of making, and methods of using.

Abstract: The invention relates to the development of a low-density granular Oxidizing Agent (PAN), the ingredients of which do not segregate and are conferred with explosive properties through the simple mixture thereof with combustible ingredients, thereby producing a low density granular Blasting Agent (PANFO). PANFO has many applications in the mining industry, in both open-pit and underground operations, said agent being suitable for use alone in applications intended to control damage to the banks or mixed other explosives typically used in the industry. According to the invention the density of the mixture can be adjusted to the conditions of the rock to be blasted and, consequently, the fragmentation requirements can be maximised.