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HS-CODE
84-
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Detailed Description
Atmospheric air contains a mass of pollutants including dust, water aerosols, hydrocarbon and other gaseous contaminants by the addition of liquid oil, oil aerosols, oil vapor, (if an oil-lubricated compressor is used) liquid water, water aerosols, water vapor, pipe rust and scale as well as any extra micro-organisms that may be living, growing and multiplying in the compressed air lines. All of these unwanted, contaminants will arrive at the point-of-use of a compressed air system but can be removed by various filters depending on the level of clean compressed air required.
The 3A Accepted Practices for Supplying Air Under Pressure in Contact With Milk, Milk Products and Product Contact Surfaces, Number 604-05 recognizes the need for clean compressed air in the food industry. It pertains to the sanitary aspects of the equipment and filters used in the supplying of air under pressure for contact with food, food products, other comestibles, product contact surfaces and solution contact surfaces or primary and secondary contamination refer to Section D6 of the 3A Practice and 'final filters', for their location and use.