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This reference specification should serve as a guide for establishing a procedure to select cleaning agents, both solvent and water-based detergents, for oxygen service.
To verify that Ham-Let supplies its customers with high quality manufactured parts, properly cleaned, assembled, packed and ready for exploitation, in order to guarantee their functionality at customer end.
It is critical that parts used concours traduction for pure or high concentration oxygen service be properly cleaned to assure they are free of any contamination caused by flammable residues.The package shall be labeled: "Ham-Let Special Cleaning and Packaging (SOP# 8185) astm G93 level C for Oxygen Service".Furthermore, each car made are tailor made for the specific region they are to be sold - so if a car is going to Alaska, it's going to be treated a lot longer for rust than say, a car going to the factory.Certificate issued on COC (Certificate of Conformance) stating: "Cleaned For Oxygen Service", upon customer request.Tools used for assembly shall be made out of corrosion-resistant alloy, stainless steel or nickel/chromium plated steel.ISO15001and astm G93 level C for Lubricant Free Service".
All "OC LF" Ham-Let products are pre-cleaned as per this specification.
Non-hydrocarbon approved lubricant is applied to threads, mating parts, o-rings, and seals to prevent galling, reduce friction, and promote proper sealing.If any contamination is observed, the item must be re-cleaned.Assembly, Lubrication and Testing:.1. .All "LF" parts are treated the same as "OC" parts and assemblies, but lubrication is prohibited.Qualification of process and revalidation should be conducted once a year using TOC method with ultrasonic extraction, as per ISO15001and astm G93 standard class.
Cleaning, Drying and Inspection Procedures.1. .
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