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ISO 8573-1-2010 pdf free download
ISO 8573-1-2010 pdf free download.Compressed air — Part 1:Contaminants and purity classes
Air compamé — Pe,tae 1: Polluants et classes de pureté.
The air purity classification given in this part of ISO 8573 is intended to provide a guide to the air purity expected Ni the compressed air system rather than resulting from the indusion of a single air treatment component. It should be recognized that achieving any given air purity specification cannot be done exdusiv&y by a combination of equipment; the specification of the con-oct lubricants/coolants and the correct control of physical parameters, such as temperature, are also required. The correct control of such parameters as temperature has an effect on the physical state of the liquids. which can become aerosols or vapours To maintain the air purity within a compressed air system, It Is considered essential that suppliers’ recommendations regarding maintenance intervals be followed.
A.2 Special applications
This part of ISO 8573 might not be suitable to fully define the requirements of special applications. It can be the case that, for applications such as breathing air, medical air, food and beverage, it is required to consider controlling other contaminants not identified in a classification or not included as a contaminant, to fully specify that requirement. It can be necessary to consult other sources of information, such as a pharmacopoeia. breathing air specifications and dean-room standards, before an air purity specification can be established. In addition, national in-use requirements can also stipulate regular testing for applications such as breathing air supplies
Contaminants can exist in solid, liquid or gaseous form. They influence each other (e.g. solid particulates agglomerate in the presence of oil or water to form larger particles: oil and water form an emulsion) or condense (e.g. oil vapour or water vapour) inside the pipewoct of compressed air systems.
Contaminants in solid form originate from many different sources. e.g. dust particles from the surrounding atmosphere drawn in by the compressor air intake or by abrasion or corrosion within the compressed air system. They can range from very large, granular to extremely small submicron-sized particles. Furthermore. solid particles can be either inert particles or viable colony-forming units.
A.3.2.2 Particl• classes 6 and 7
Industrial toots and pneumatic-fluid power-operated machines have traditionally been supplied with air filtered by general-purpose filters with a notional particle size rating of 5 pm (class 6) and 40 pm (class 7).ISO 8573-1-2010 pdf free download.
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