Many thanks Joe.
I suspect the individual that suggested this detail may have been confusing this with an IEST cleanroom document.
Rich Kraszewski
Senior Staff Process Engineer
Plexus Engineering Solutions
Ship To - 2444 Schultz Dr. Neenah, WI 54957-2444
Mail To - P.O. Box 2444 Neenah, WI 54957-2444
Phone: (920) 969-6075
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-----Original Message-----
From: [log in to unmask] [mailto:[log in to unmask]]
Sent: Wednesday, June 28, 2017 4:26 PM
To: Richard Kraszewski; [log in to unmask]
Subject: Re: [TN] IPC definition of alcohol
Hello Rich,
To the best of my knowledge, I am not aware of a statement to that affect in any IPC document that I have read. If there is such a statement, then I would say it is an erroneous one and needs to be addressed. There is HPLC grade IPA, which usually refers to 99.5% or higher purity. There is also Electronic-grade IPA, which has the same purity as HPLC. Then there is Technical grade IPA, which I believe is usually classified as anything above 90% purity. IPA is a chemical and its percentage of purity doesn't define whether or not it is still an "IPA", it's chemical formula defines that.
The % only defines how much junk is left behind in the solvent. Now, there are IPC methods that deal with the percentage of the starting IPA, such as the ROSE and Ion Chromatography methods, and the reason is to minimize adding error into the measurement system that could skew the results for an actual sample. If there is a statement as you indicate below, can you ask whoever told you that which IPC document states such a thing? If not, I wonder if someone might have misread that part of the document
Best Regards,
Joe Russeau
-----Original Message-----
From: Richard Kraszewski
Sent: Wednesday, June 28, 2017 4:48 PM
To: [log in to unmask]
Subject: [TN] IPC definition of alcohol
I have been lead to believe that there is a definition within IPC documentation for IPA (isopropyl alcohol).
That it defines that anything greater than "XX%" IPA shall be considered IPA.
Any thoughts?
Rich Kraszewski
Senior Staff Process Engineer
Plexus Engineering Solutions
Ship To - 2444 Schultz Dr. Neenah, WI 54957-2444 Mail To - P.O. Box 2444 Neenah, WI 54957-2444
Phone: (920) 969-6075
www.plexus.com/(NASDAQ PLXS)
[log in to unmask]
* * * * * * * * CONFIDENTIALITY NOTICE * * * * * * * *
This e-mail and any attachments are confidential from Plexus Corp. and may contain information which is privileged, confidential, and/or protected by non-disclosure agreements. They are intended solely for the use of the named addressee(s). . Any unauthorized use or disclosure may be unlawful.
If you are not a named addressee, you must not use, disclose, retain or reproduce all or any part of the information contained in this e-mail or any attachments If you have received this transmission in error, please destroy it and notify us immediately by return e-mail or by calling + 1 888 208 9005.
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