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Laura Gunn
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Re: Compressed Air Testing
Laura Gunn   11/8/2013 10:55:03 AM
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That is funny! But... You are so on point. I really appreciate your article, as you said, the discussion on the subject is far too minimal. Hopefully your simple question will get some folks thinking.

CMathas
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Re: Compressed Air Testing
CMathas   11/8/2013 10:46:19 AM
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Thanks Laura - when I first read of this device, what rapidly came to mind was that anything under pressure coming through a tube should be somewhat suspect. You'll all probably laugh, but it's the reason I don't have a water/ice dispenser on my refrigerator door. I kept thinking, "How clean can that be?"


Yet, when I started to do some research for the article, I was amazed at the lack of discussion on this. Thanks for posting!

Laura Gunn
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Compressed Air Testing
Laura Gunn   11/8/2013 10:40:36 AM
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You make an excellent point Carolyn.  At this time there are no requirements that specifically address the testing of compressed air used in pharmaceutical or medical device manufacturing. SQF was the first group to require compressed air testing for food manufacturers in the US and that just began in 2012. Keep in mind that compressed air has been used in manufacturing for decades. Our company is looking forward to adding the CAMTU to our menu of options for the testing of microbiological contaminants.  Bravo Parker Balston!



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As data rates begin to move beyond 25 Gbps channels, new problems arise. Getting to 50 Gbps channels might not be possible with the traditional NRZ (2-level) signaling. PAM4 lets data rates double with only a small increase in channel bandwidth by sending two bits per symbol. But, it brings new measurement and analysis problems. Signal integrity sage Ransom Stephens will explain how PAM4 differs from NRZ and what to expect in design, measurement, and signal analysis.

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