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href="http://www.cdcfah.com/cp/first-_huagong/">化工</a>?<a href="http://www.cdcfah.com/cp/second-huagong_fenxiyiqinh/">分析儀器</a>?<a href="http://www.cdcfah.com/cp/third-fenxiyiqinh_qtfxyqej/">其他分析儀器</a>?徐州超純水哪里有創(chuàng)新服務(wù) 上海澤權(quán)儀器設(shè)備供應(yīng)</p><div id="qprjqp9" class="leftbox clearfix"><h1>徐州超純水哪里有創(chuàng)新服務(wù) 上海澤權(quán)儀器設(shè)備供應(yīng)</h1><div id="2he8gsr" class="proBig"><div id="yszwdfe" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/zequanyiqi/637408202715938164/2606546.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="3qx7dvx" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/zequanyiqi/637408202715938164/2606546.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="baczrd3" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價格要求：</span>面議</p><p><span>所在地：</span>上海市</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>徐州超純水哪里有,超純水</p><p><span>***更新：</span>2020-11-20 11:24:49</p><p><span id="click" >瀏覽次數(shù)：0次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="icuw7sz" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">上海澤權(quán)儀器設(shè)備有限公司</a></p><p><span>聯(lián)系人：</span>舒騁</p><p><span>郵箱: </span>2595161201@qq.com</p><p><span>電話: </span>17321076351</p><p><span>傳真: </span>021_</p><p><span>網(wǎng)址: </span>http://www.zeal-quest.com</p><p><span>手機: </span>021-62837120</p><p><span>地址: </span>上海市徐匯區(qū)肇嘉浜路798號坤陽商務(wù)廣場303室</p><p>[當(dāng)前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="nxurtf3" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="oip8vcb" class="box"><p><p style="text-indent:25px">實驗室超純水的質(zhì)量要求：外觀與等級；實驗室超純水應(yīng)為無色透明的液體，其中不得有肉眼可辨的顏色及纖絮雜質(zhì)。通常將實驗室超純水分三個等級。① 一級水；不含有溶解雜質(zhì)或膠態(tài)質(zhì)有機物，用于制備標(biāo)準(zhǔn)水樣或超痕量物質(zhì)的分析?？赏ㄟ^將二級水經(jīng)過再蒸餾、離子交換混合床、0.2μm濾膜過濾等方法處理，或用石英蒸餾裝置作進(jìn)一步蒸餾進(jìn)行制備。② 二級水；常含有微量的無機、有機或膠態(tài)雜質(zhì)，用于精確分析和研究工作，徐州超純水哪里有?？赏ㄟ^經(jīng)蒸餾，徐州超純水哪里有、電滲析或離子交換法制備的超純水進(jìn)行再蒸餾的方法制備，徐州超純水哪里有。③ 三級水；適用于一般實驗工作?？捎谜麴s、電滲析或離子交換等方法制備。超純水提高了鍋爐的效率，降低了燃料成本。徐州超純水哪里有</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="徐州超純水哪里有,超純水" src="https://tyunfile.71360.com/UploadFile/zequanyiqi/637408202715938164/2606546.png"></div><p style="text-indent:25px">電力系統(tǒng)所用的超純水，要求各雜質(zhì)含量低達(dá)到“微克/升”級。在超純水的制作中，水質(zhì)標(biāo)準(zhǔn)所規(guī)定的各項指標(biāo)應(yīng)該根據(jù)電子(微電子)元器件(或材料)的生產(chǎn)工藝而定(如普遍認(rèn)為造成電路性能破壞的顆粒物質(zhì)的尺寸為其線寬的1/5-1/10)，但由于微電子技術(shù)的復(fù)雜性和影響產(chǎn)品質(zhì)量的因素繁多，至今尚無一份由工藝試驗得到的適用于某種電路生產(chǎn)的完整的水質(zhì)標(biāo)準(zhǔn)。隨著電子級水標(biāo)準(zhǔn)的不斷修訂，而且超純水分析領(lǐng)域的許多突破和發(fā)展，新的儀器和新分析方法的不斷應(yīng)用都為制超純水工藝的發(fā)展創(chuàng)造了條件。徐州超純水哪里有超純水普遍運用到各種工業(yè)生產(chǎn)制造行業(yè)當(dāng)中。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="徐州超純水哪里有,超純水" src="https://tyunfile.71360.com/UploadFile/zequanyiqi/637408202582754609/6259709.png"></div><p style="text-indent:25px">超純水在電子工業(yè)主要是線路板、電子元器件生產(chǎn)中的重要作用日益突出，超純水水質(zhì)已成為影響線路板、電子元器件產(chǎn)品質(zhì)量、生產(chǎn)成品率及生產(chǎn)成本的重要因素之一，水質(zhì)要求也越來越高。在電子元器件生產(chǎn)中，超純水主要用作清洗用水及用來配制各種溶液、漿料，不同的電子元器件生產(chǎn)中超純水的用途及對水質(zhì)的要求也不同。在晶體管、集成電路生產(chǎn)中，超純水主要用于清洗硅片，另有少量用于藥液配制，硅片氧化的水汽源，部分設(shè)備的冷卻水，配制電鍍液等。</p><p style="text-indent:25px">實驗室用超純水對水質(zhì)大都要求比較高，根據(jù)不同的應(yīng)用場合又可分為三個級別用水：一級用水，電阻要求大于10MΩ（電導(dǎo)率低于0.1us/cm),主要用于有嚴(yán)格要求的分析試驗，包括對顆粒有要求的試驗。如高壓液相色譜分析用水。一級水常用二級水經(jīng)過石英設(shè)備蒸餾或反滲透及離子交換混合床處理后，再經(jīng)過0.2μm微孔濾膜過濾來制取。二級用水，電阻要求大于10MΩ（電導(dǎo)率低于0.1us/cm),主要用于無機痕量分析等試驗，如原子吸收光譜分析用水。二級水可用多次蒸餾或反滲透及離子交換等方法制取。三級用水，三級水用于一般化學(xué)分析試驗。三級水可用蒸餾或離子交換等方法制取。超純水水質(zhì)會直接影響到液晶屏質(zhì)量，導(dǎo)致廢、次品。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="徐州超純水哪里有,超純水" src="https://tyunfile.71360.com/UploadFile/zequanyiqi/637408202513291658/445867.png"></div><p style="text-indent:25px">在光伏、半導(dǎo)體行業(yè)電子管生產(chǎn)中,如其中混入雜質(zhì)，就會影響電子的發(fā)射，進(jìn)而影響電子管的放大性能及壽命。在面板上如果有其他的金屬離子會造成發(fā)光變色、變暗、閃動并會造成氣泡、條跡、漏光點等廢次品。在光伏行業(yè)晶體管、集成電路生產(chǎn)中，水中的顆粒（包括細(xì)菌）如吸附在硅片表面，就會引起電路短路或特性變差。超純水的制取使用CEDI全名為電解式連續(xù)離子法,其主要用途是針對半導(dǎo)體、電廠、電子、制藥或?qū)嶒炇业雀呖萍籍a(chǎn)業(yè)提供高純度的超純水,該技術(shù)問世已超過15年,注冊**名為CDI,其研發(fā)成果居于市場帶領(lǐng)者地位,且聞名于世。CDI電解式連續(xù)去離子膜塊組的功能與傳統(tǒng)的混床離子交換樹脂相似,一般皆使用于RO(逆滲透)系統(tǒng)去除水中微量的離子,但CDI系統(tǒng)不需停機再生,因此也不需使用酸堿再生也沒有廢水排放的問題。超純水可以完全能夠盡量完全地除去各種殘渣。東莞超純水排行榜</p><p style="text-indent:25px">普通化工原料配料用超純水，食品行業(yè)配料用超純水。徐州超純水哪里有</p><p style="text-indent:25px">我們知道水的導(dǎo)電性能，與水的電阻值大小有關(guān)，電阻值大，導(dǎo)電性能差，電阻值小，導(dǎo)電性能就良好。根據(jù)歐姆定律，在水溫一定的情況下，水的電阻值R大小與電極的垂直截面積F成反比，與電極之間的距離L成正比： R=ρ＆#183;L/F 式中ρ為電阻率，或稱比電阻。電阻的單位為歐姆（歐，代號Ω），或用微歐（μΩ），1Ω等于106μΩ電阻率的國際制（SI）單位為歐米（Ω＆#183;M）。如果電極的截面積F做成1CM2，那么電阻值就等于電阻率。水的電阻率的大小，與水中含鹽量的多少，水中離子濃度、離子的電荷數(shù)以及離子的運動速度有關(guān)。因此，超純水電率很大，超純水電阻率就更大,也就說水越純，電阻率越大。徐州超純水哪里有</p><p style="text-indent:25px">上海澤權(quán)儀器設(shè)備有限公司致力于機械及行業(yè)設(shè)備，是一家貿(mào)易型公司。公司自成立以來，以質(zhì)量為發(fā)展，讓匠心彌散在每個細(xì)節(jié)，公司旗下奧林巴斯土壤中金屬分析儀，奧林巴斯合金分析儀，奧林巴斯衍射儀，連續(xù)流動分析儀深受客戶的喜愛。公司注重以質(zhì)量為中心，以服務(wù)為理念，秉持誠信為本的理念，打造機械及行業(yè)設(shè)備良好品牌。上海澤權(quán)儀器立足于全國市場，依托強大的研發(fā)實力，融合前沿的技術(shù)理念，飛快響應(yīng)客戶的變化需求。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2071269.html</p></div></div></div></div></div><div id="i77fm3a" class="page-right twoColRt"><div id="ncegnub" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="ynphjqc" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/1/14/637082168864691056_lgpj_5374157.jpg" alt="福建ZF配件哪家強信息推薦自業(yè)物資供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>福建ZF配件哪家強信息推薦自業(yè)物資供應(yīng)</p></a></div><div id="vfxofmo" class="recomPic likePro"><a 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