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濁度就是水的混濁程度，表現水中懸浮物對光線(xiàn)透過(guò)時(shí)所發(fā)生的阻礙程度。水中含有泥土、粉塵、微細有機物、浮游動(dòng)物和其他微生物等懸浮物和膠體物都可使水中呈現濁度。而濁度儀就是根據這個(gè)原理應運而生用來(lái)測量水的濁度。水的濁度不僅與水中懸浮物質(zhì)的含量有關(guān)，而且與它們的大小、形狀及折射系數等有關(guān)。<div>　　濁度儀用于測量懸浮于水或透明液體中不溶性顆粒物質(zhì)所產(chǎn)生的光的散射程度，并能定量表征這些懸浮顆粒物質(zhì)的含量?？梢詮V泛應用于純凈水廠(chǎng)、自來(lái)水廠(chǎng)、飲料廠(chǎng)、制酒行業(yè)及制藥行業(yè)、防疫部門(mén)、醫院等部門(mén)的濁度測量。</div><div>　　濁度儀的操作要注意哪些事項：</div><div>　　1、采樣后要及時(shí)測量，以避免溫度變化及水樣顆粒沉降應起測量結果缺乏真實(shí)性。</div><div>　　2、樣瓶必須清洗得非常干凈，避免擦傷留下劃痕。用實(shí)驗室的洗滌劑清洗樣瓶?jì)韧?，然后用蒸餾水反復漂洗，在無(wú)塵的干燥箱內干燥，如使用時(shí)間長(cháng)了，可用稀鹽酸浸泡兩小時(shí)，最后用蒸餾水反復漂洗。拿取樣瓶時(shí)只能拿瓶體上半部分，以避免指印進(jìn)入光路。</div><div>　　3、非常正確地配制標定點(diǎn)的福爾馬肼標準液，是濁度測量的重要技術(shù)，保證計算正確，注意配制標準液的每個(gè)步驟，均勻的搖晃原液，準確的移液，倒入零濁度儀應注意刻度，第濁度的標準液應選用大容量的量瓶，以降低配制誤差。</div><div>　　4、選擇校正用的標準液，含量應選用所測量程滿(mǎn)量程值為宜，且定標前應充分搖勻，測量前應保證校正值的正確無(wú)誤。對于低濁度測定及較高精度的測量應考慮瓶間的測量差異，必須使用同一樣瓶進(jìn)行定標及檢測。校零時(shí)應選用零濁度水，要求不高時(shí)，可采用蒸餾水。</div><div>　　5、有代表性的水樣能準確反映水源的真實(shí)性。因此，從各采樣點(diǎn)取來(lái)的水樣在測量前必須充分混勻，避免水樣沉降及較大顆粒的影響。置備時(shí)應去除樣瓶中的氣泡。測量溫度較低的水樣時(shí)，樣瓶瓶體會(huì )發(fā)生冷凝水滴。因此在測量前必須讓其放置一段時(shí)間，使水樣的溫度結近室溫，然后再擦干凈瓶體的水跡。</div> </div> <div id="k2ec0ck" class="ly_PrevNext"> <ul> <li>上一篇：<a href="/jsshengaohua-Article-3072615/">水質(zhì)濁度儀的操作和調試步驟</a></li> <li>下一篇：<a href="/jsshengaohua-Article-3057405/">影響總氮測定儀測定結果的因素有哪些？</a></li> </ul> </div> </div>   <div id="gy2oqes" class="foot_box"> <div id="2c2usw2" class="footCon"> <div id="k2q2asy" class="foot_t w1300"> <div id="cy0sou2" class="foot_lv"> <div id="uckk0ke" class="foot_logo"><img src="/skins/257424/images/foot_logo.png" /></div> <div id="cmeksyq" class="foot_nav"> <ul> <li><a href="/">首頁(yè)</a></li> <li><a href="/products.html">產(chǎn)品中心</a></li> <li><a href="/aboutus.html" rel="nofollow">關(guān)于我們</a></li> <li><a href="/news.html">新聞中心</a></li> <li><a href="/article.html">技術(shù)文章</a></li> <li><a href="/contact.html" rel="nofollow">聯(lián)系我們</a></li> </ul> </div> </div> <div id="gesaass" class="footMain"> <div id="q0gkg0o" class="foot_tel"> <p>全國統一服務(wù)電話(huà)</p> 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