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Oct 22, 2007 · I just wanted to add that contact with other metals will contaminate the Stainless at almost any grade. I see lots of stainless tubes where some pipe-fitter leaves the chain-fall lead laying on it and the next morning there is a rust layer on the s.s. surface. Although some maybe transfer, that s.s. has been contaminated by the carbon in the chain.

7. Air Monitoring

A major disadvantage of long-term air monitoring is the time required to obtain data. The time lag between sampling and obtaining the analysis results may be a matter of hours, if an onsite laboratory is available, or days, weeks, even months, if a remote laboratory is involved. This can

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