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<script> $(document).ready(function(){ var obj = $("#subNav").children("li"); var lid="#page1"; //alert(lid); //$(obj[xid]).removeClass(); $(lid).addClass("hover"); }); </script> <div id="znfrt0j" class="main_right"> <div id="znfrt0j" class="main_top1"> <p>您的位置：<a href="/">首頁</a> > <a href="/products.html" title="產(chǎn)品中心">產(chǎn)品中心</a> > > <a href="/ParentList-1718102.html">水質(zhì)檢測儀器</a> > JH-CYbod測量儀bod檢測數(shù)據(jù) </p> <big>產(chǎn)品中心</big> </div> <div id="znfrt0j" class="clear"></div> <dl class="product_article"> <dt> <div id="znfrt0j" class="proimg_bk1"><a class="proimg1"><img src="http://img49.chem17.com/gxhpic_d55d0c909a/f34697d735b517a6b14bee7f07f481f7ad8bf2a4cef6848c2f851226c4bfa9b9daa67afec2b930df.jpg"/></a></div> </dt> <dd deep="3"> <div class="znfrt0j" id="prod_gs" class="prod_gs"> <div id="znfrt0j" class="prod_view_name"> <strong class="prod_view_name_bt">產(chǎn)品名稱：</strong> <b><h1 style="font-size: inherit"><span id="ShoveWebControl_Text3">bod測量儀bod檢測數(shù)據(jù)</span></h1></b> </div> <div class="znfrt0j" id="xn_c_prodv_26_wrap" class="xn_c_prodv_26_wrap"> <div id="znfrt0j" class="xn_c_prodv_26_name" style="line-height: 36px;"> <span id="znfrt0j" class="xn_c_prodv_26_namewz"><span name="_prodv_26_namewz">產(chǎn)品型號：</span></span> <span id="znfrt0j" class="xn_c_prodv_26_namemc"><span id="xn_c_prodv_26_Text1">JH-CY</span></span> </div> <div id="znfrt0j" class="xn_c_prodv_26_name" style="line-height: 36px;"> <span id="znfrt0j" class="xn_c_prodv_26_namewz"><span name="_prodv_26_namewz">產(chǎn)品時間：</span></span> <span id="znfrt0j" class="xn_c_prodv_26_namemc"><span id="xn_c_prodv_26_Text1">2024-07-14</span></span> </div> </div> <div class="znfrt0j" id="prod_view_ms" class="prod_view_ms"><span id="ShoveWebControl_Text7">bod測量儀bod檢測數(shù)據(jù)：</br> BOD（生物化學(xué)需氧量）是環(huán)境水質(zhì)標準和污、廢水排放標準中的控制項目，是衡量有機物對水質(zhì)污染質(zhì)量指標之一。JH-CY型BOD5測定儀廣泛適用于各級環(huán)保部門、水資源管理部門及公共衛(wèi)生部門對水質(zhì)的監(jiān)測與管理?？蓪Ω鞣N地表水、生活污水、工業(yè)廢水的BOD值進行測定。</span></div> </div> <p></p> </dd> </dl> <div id="znfrt0j" class="main_top3"><p>產(chǎn)品介紹</p></div> <div id="znfrt0j" class="product1 pro_1"> <p><span style="font-size:16px"><span style="font-family:黑體"><strong>bod測量儀bod檢測數(shù)據(jù)</strong>技術(shù)參數(shù)：</span></span></p><table align="center" style="border-collapse:collapse; border-spacing:0px; empty-cells:show; font-family:arial,verdana,宋體; font-size:14px; font-stretch:normal; line-height:19.6px; margin:0px auto; padding:0px; text-align:justify; width:352pt"><tbody><tr><td><p><span style="font-size:16px"><span style="font-family:黑體">型號</span></span></p></td><td><p><span style="font-size:16px"><span style="font-family:黑體">JH-CY</span></span></p></td></tr><tr><td><p><span style="font-size:16px"><span style="font-family:黑體">讀數(shù)方式</span></span></p></td><td><p><span style="font-size:16px"><span style="font-family:黑體">水銀刻度</span></span></p></td></tr><tr><td><p><span style="font-size:16px"><span style="font-family:黑體">測量范圍</span></span></p></td><td><p><span style="font-size:16px"><span style="font-family:黑體">0～25、50、100、200、300、400、600、800、1000（mg/l）共九個量程</span></span></p></td></tr><tr><td><p><span style="font-size:16px"><span style="font-family:黑體">測定樣品數(shù)</span></span></p></td><td><p><span style="font-size:16px"><span style="font-family:黑體">8個</span></span></p></td></tr><tr><td><p><span style="font-size:16px"><span style="font-family:黑體">培養(yǎng)溫度</span></span></p></td><td><p><span style="font-size:16px"><span style="font-family:黑體">20℃±1℃</span></span></p></td></tr><tr><td><p><span style="font-size:16px"><span style="font-family:黑體">測試精度</span></span></p></td><td><p><span style="font-size:16px"><span style="font-family:黑體">符合部頒關(guān)于水質(zhì)BOD5精度測試標準（葡萄糖—谷氨酸標液BOD5=180~230mg/l）</span></span></p></td></tr><tr><td><p><span style="font-size:16px"><span style="font-family:黑體">電源</span></span></p></td><td><p><span style="font-size:16px"><span style="font-family:黑體">DC12V 500mA（已配轉(zhuǎn)換器）</span></span></p></td></tr></tbody></table><p><span style="font-size:16px"><span style="font-family:黑體"><img alt="" src="https://img50.chem17.com/gxhpic_d55d0c909a/661bc51f81281965c39db4d2509fbdea1490e50f9e9a8370f6093a2bfd4dad40469d51e30a1db3df.jpg" style="height:800px; width:800px" /><br /><strong>bod測量儀bod檢測數(shù)據(jù)</strong>產(chǎn)品概述：</span></span></p><p><span style="font-size:16px"><span style="font-family:黑體"><span style="color:rgb(0, 0, 0)"><span style="color:rgb(51, 51, 51)">BOD（生物化學(xué)需氧量）是環(huán)境水質(zhì)標準和污、廢水排放標準中的控制項目，是衡量有機物對水質(zhì)污染質(zhì)量指標之一。JH-CY型BOD5測定儀廣泛適用于各級環(huán)保部門、水資源管理部門及公共衛(wèi)生部門對水質(zhì)的監(jiān)測與管理?？蓪Ω鞣N地表水、生活污水、工業(yè)廢水的BOD值進行測定。</span></span></span></span></p><p><span style="font-size:16px"><span style="font-family:黑體"><strong>影響B(tài)OD</strong><strong><sub>5</sub></strong><strong>測定的因素</strong></span></span></p><p><span style="font-size:16px"><span style="font-family:黑體"> <strong><span style="color:gray">—溶解氧：</span></strong></span></span></p><p style="margin-left:21.7000pt; margin-right:0.0000pt; text-align:justify"><span style="font-size:16px"><span style="font-family:黑體"> <span style="color:#595959">冬季所取的樣品由于試驗溫度設(shè)在20℃，使得溶解氧過飽和，夏季所取的樣品在20℃時溶解氧可能欠飽和。在BOD</span><sub><span style="color:#595959">5</span></sub><span style="color:#595959">測定前應(yīng)對這些樣品進行攪拌和曝氣，以便使溶解氧調(diào)節(jié)到20℃飽和點左右。</span></span></span></p><p><span style="font-size:16px"><span style="font-family:黑體"><strong><span style="color:gray">—pH：</span></strong> </span></span></p><p style="margin-left:22.7000pt; margin-right:0.0000pt; text-align:justify"><span style="font-size:16px"><span style="font-family:黑體"><span style="color:#595959"> 應(yīng)調(diào)節(jié)試驗水樣的pH為6.7～7.5（點為pH 7.2），BOD</span><sub><span style="color:#595959">5</span></sub><span style="color:#595959">讀數(shù)下降可能是由于正在試驗樣品的pH值超出了這個范圍，含有大量酸或堿的樣品BOD</span><sub><span style="color:#595959">5</span></sub><span style="color:#595959">讀數(shù)可能會低于實際含量。</span></span></span></p><p style="margin-left:22.7000pt; margin-right:0.0000pt; text-align:justify"><span style="font-size:16px"><span style="font-family:黑體"><span style="color:#595959"> 酸性或堿性水樣應(yīng)用適當濃度的Na0H或H2S04中和。</span></span></span></p><p style="margin-left:22.7000pt; margin-right:0.0000pt; text-align:justify"><span style="font-size:16px"><span style="font-family:黑體"><span style="color:#595959"> 如果工業(yè)廢水中含有酸性或鹽的氧化物，或者需要高倍稀釋，對標準五日BOD</span><sub><span style="color:#595959">5</span></sub><span style="color:#595959">測定，可使用pH 7.2的磷酸緩沖液作為稀釋劑。</span></span></span></p><p><span style="font-size:16px"><span style="font-family:黑體"> <strong><span style="color:gray">—溫度：</span></strong></span></span></p><p style="margin-left:21.7000pt; margin-right:0.0000pt; text-align:justify"><span style="font-size:16px"><span style="font-family:黑體"> <span style="color:#595959">實驗時將儀器放大器放置在20℃±1℃的培養(yǎng)箱中。BOD的測定也能超出這一溫度范圍，例如，在35℃或37℃時，測定BOD所需要的時間可以縮短為34小時，其測定結(jié)果與五日20℃ BOD</span><sub><span style="color:#595959">5</span></sub><span style="color:#595959">測定相似。提高溫度所獲得的BOD值與五日20℃條件下測定的結(jié)果有很好的相關(guān)性。</span></span></span></p><p style="margin-left:22.7000pt; margin-right:0.0000pt; text-align:justify"><span style="font-size:16px"><span style="font-family:黑體"><span style="color:#595959"> 如果在采樣時樣品溫度超過20℃，或樣品溫度不足20℃，可將樣品放在培養(yǎng)箱中恒溫。在樣品測定前要求對樣品進行處理。</span></span></span></p><p><span style="font-size:16px"><span style="font-family:黑體"><strong><span style="color:gray">—稀釋：</span></strong> </span></span></p><p style="margin-left: 22.7pt; margin-right: 0pt;"><span style="font-size:16px"><span style="font-family:黑體"><span style="color:#595959"> JH-CY型直讀式BOD</span><sub><span style="color:#595959">5</span></sub><span style="color:#595959">測定儀測定范圍為0～1000mg/L。如果試驗樣品的BOD</span><sub><span style="color:#595959">5</span></sub><span style="color:#595959">估計值高于1000mg/L可用稀釋水稀釋樣品。所加入的稀釋水也應(yīng)保持為20℃，并曝氣使氧達到飽和，如需要若干份相同的樣品試驗時，應(yīng)稀釋足夠量的原水樣，并從稀釋樣中取出與量程對應(yīng)的體積。例如，當試驗原水樣稀釋兩倍時，稀釋倍數(shù)為2；當原水樣按1:10稀釋時，則應(yīng)為10，所測結(jié)果應(yīng)乘上稀釋倍數(shù)。</span></span></span></p><p><span style="font-size:16px"><span style="font-family:黑體"><strong><span style="color:gray">—接種</span></strong></span></span></p><p><span style="font-size:16px"><span style="font-family:黑體"><span style="line-height:1.6em; text-align:justify"> </span><span style="line-height:1.6em; text-align:justify"><span style="color:#595959">與生活污水不同，工業(yè)廢水可能不含有足夠量的細菌以供樣品中所含有機物*的生化分解，如果所測定的樣品為這種廢水，應(yīng)加入接種溶液。</span></span></span></span></p><p style="margin-left:21.7000pt; margin-right:0.0000pt; text-align:justify"><span style="font-size:16px"><span style="font-family:黑體"> <span style="color:#595959">A接種方法</span></span></span></p><p style="margin-left:22.7000pt; margin-right:0.0000pt; text-align:justify"><span style="font-size:16px"><span style="font-family:黑體"><span style="color:#595959"> 制備接種溶液</span></span></span></p><p style="margin-left:22.7000pt; margin-right:0.0000pt; text-align:justify"><span style="font-size:16px"><span style="font-family:黑體"><span style="line-height:1.6em"><span style="color:#595959">將準備測定的樣品放入培養(yǎng)瓶中，使用吸管將一定量的接種液加入到樣品中（根據(jù)樣品量）。按步驟測定BOD</span></span><sub style="line-height:1.6em"><span style="color:#595959">5</span></sub><span style="line-height:1.6em"><span style="color:#595959">，五日后獲得的讀數(shù)可以作為試驗樣品真實的BOD</span></span><sub style="line-height:1.6em"><span style="color:#595959">5</span></sub><span style="line-height:1.6em"><span style="color:#595959">值。</span></span></span></span></p><p style="margin-left:22.7000pt; margin-right:0.0000pt; text-align:justify"><span style="font-size:16px"><span style="font-family:黑體"> <strong><span style="color:#595959">注意：</span></strong><span style="color:#595959">當使用上述方法接種時。不必校正接種的BOD</span><sub><span style="color:#595959">5</span></sub><span style="color:#595959">讀數(shù)。因為所加入接種液的量相對水樣量來說實在太少了，以致于不影響B(tài)OD</span><sub><span style="color:#595959">5</span></sub><span style="color:#595959">的讀數(shù)。如果上述方法未能引起水樣中有機物的生物分解，可增加所加入接種液的量。如果由于接種液的加入影響了BOD</span><sub><span style="color:#595959">5</span></sub><span style="color:#595959">讀數(shù)，可將接種液與樣品同時實驗進行平行樣測定。</span></span></span></p><p style="margin-left:22.7000pt; margin-right:0.0000pt; text-align:justify"><span style="font-size:16px"><span style="font-family:黑體"><span style="color:#595959"> 接種量常取5％，10％二種。</span></span></span></p><p><span style="font-size:16px"><span style="font-family:黑體"> </span></span></p><p style="margin-left:22.7000pt; margin-right:0.0000pt; text-align:justify"><span style="font-size:16px"><span style="font-family:黑體"><img alt="" src="https://img48.chem17.com/gxhpic_d55d0c909a/661bc51f81281965c39db4d2509fbdead80fd18938840774a381a8537a89b79c0ce2f22d844d1a95.jpg" style="height:800px; width:800px" /></span></span></p><p style="margin-left:21.7000pt; margin-right:0.0000pt; text-align:justify"><span style="font-size:16px"><span style="font-family:黑體"> </span></span></p><p><span style="font-size:16px"><span style="font-family:黑體"><strong><span style="color:gray">硫酸鎂溶液：</span></strong></span></span></p><p><span style="font-size:16px"><span style="font-family:黑體"> <span style="color:#595959">在蒸餾水中溶解22.5克硫酸鎂（MgSO 4·7H2O）并稀釋至1升。</span></span></span></p><p><span style="font-size:16px"><span style="font-family:黑體"> <strong><span style="color:gray">—氯化鈣溶液：</span></strong> </span></span></p><p><span style="font-size:16px"><span style="font-family:黑體"> <span style="color:#595959">在蒸餾水中溶解27.5克氯化鈣（CaCl2）并稀釋至1升。</span></span></span></p><p><span style="font-size:16px"><span style="font-family:黑體"> <strong><span style="color:gray">—三氯化鐵溶液：</span></strong></span></span></p><p style="margin-left:0.0000pt; margin-right:0.0000pt; text-align:justify"><span style="font-size:16px"><span style="font-family:黑體"> <span style="color:#595959">在蒸餾水中溶解0.25克三氯化鐵（FeCl3·6H2O）并稀釋至1升。</span></span></span></p><p style="margin-left:22.7000pt; margin-right:0.0000pt; text-align:justify"><span style="font-size:16px"><span style="font-family:黑體"><span style="color:#595959"> ★制備無機鹽溶液所使用的蒸餾水不應(yīng)含有微生物生長抑制劑（如堿、無機酸、余氯和重金屬）。</span></span></span></p><p><span style="font-size:16px"><span style="font-family:黑體"><img alt="" src="https://img47.chem17.com/gxhpic_d55d0c909a/661bc51f81281965c39db4d2509fbdea09b515ce0d74e7ac7a6c282aa9f17f6e6f9498ad4fb51bfa.jpg" style="height:800px; width:800px" /></span></span></p><p><span 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