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Date: | Mon, 22 Aug 2011 16:45:41 +0800 |
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Dear Colin,
According to Temperature & Humidity relationship, the humidity @5 Degree is not as high as the one @23 Degree.
Therefore, there's no specific condition for humidity when prepreg storage condition is <5 degree.
Thanks & Best Regards!
****************************
Shengyi Technology(Suzhou) Co.,Ltd
Jeff Chen
Office:+86-512-62833168-2202
Mobile:+86 18626116422
http://www.syst.com.cn
-----邮件原件-----
发件人: TechNet [mailto:[log in to unmask]] 代表 colin mcvean
发送时间: 2011年8月22日 13:52
收件人: [log in to unmask]
主题: [TN] Prepreg storage conditions
Dear all,
"Simple" question regarding prepreg storage conditions.....
IPC4101 states that prepregs has shelf life of 6 months while in condition 1 at <5 Degrees C (41 F) and 3 months while in condition 2 at <23 Degrees C (73F) and <50% Rh.
Condition 1 does not clearly state a humidity control.
Does Humidity still have to be less than 50% while under condition 1? or is this a given considering Temperature vs. Humidity relationship
rgds
Colin
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