實(shí)驗(yàn)室溫度濕度應(yīng)該控制在什么范圍內(nèi)? - 無(wú)圖版
下雨星 --- 2008-12-10 10:09:38
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實(shí)驗(yàn)室溫度濕度應(yīng)該控制在什么范圍內(nèi)?
luchaof --- 2008-12-10 10:12:53
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下雨星 --- 2008-12-10 11:08:09
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UL那個(gè)標(biāo)準(zhǔn)里面有這個(gè)要求?
onewindy --- 2011-01-12 16:26:39
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那通信機(jī)房?jī)?nèi)的濕度一般在多少?
hnivan --- 2011-01-14 23:23:35
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35%~75%
gracexue --- 2011-01-18 16:53:20
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23正負(fù)2度,濕度為50正負(fù)5度
徽寧電器 --- 2011-02-11 10:10:28
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198188 --- 2011-05-25 21:44:41
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billma --- 2014-01-08 11:19:37
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<div>Ambient temperature conditioning Before determination of the cross-sectional area, all test pieces shall be protected from direct sunlight and maintained for at least 3 h at a temperature of (23 ± 5) °C, except for thermoplastic insulating materials which shall be kept at (23 ± 2) °C.</div>
[billma 在 2014-1-8 12:08:25 編輯過(guò)]
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