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id="ShoveWebControl_Text3">數(shù)字式B0D5測(cè)定儀BOD5測(cè)定裝置質(zhì)控樣品</span></h1></b> </div> <div class="eoskoy0kygyw" id="xn_c_prodv_26_wrap" class="xn_c_prodv_26_wrap"> <div id="eoskoy0kygyw" class="xn_c_prodv_26_name" style="line-height: 36px;"> <span id="eoskoy0kygyw" class="xn_c_prodv_26_namewz"><span name="_prodv_26_namewz">產(chǎn)品型號(hào)：</span></span> <span id="eoskoy0kygyw" class="xn_c_prodv_26_namemc"><span id="xn_c_prodv_26_Text1">JH-CY</span></span> </div> <div id="eoskoy0kygyw" class="xn_c_prodv_26_name" style="line-height: 36px;"> <span id="eoskoy0kygyw" class="xn_c_prodv_26_namewz"><span name="_prodv_26_namewz">產(chǎn)品時(shí)間：</span></span> <span id="eoskoy0kygyw" class="xn_c_prodv_26_namemc"><span id="xn_c_prodv_26_Text1">2024-07-12</span></span> </div> </div> <div class="eoskoy0kygyw" id="prod_view_ms" class="prod_view_ms"><span id="ShoveWebControl_Text7">數(shù)字式B0D5測(cè)定儀BOD5測(cè)定裝置質(zhì)控樣品：</br> BOD（生物化學(xué)需氧量）是環(huán)境水質(zhì)標(biāo)準(zhǔn)和污、廢水排放標(biāo)準(zhǔn)中的控制項(xiàng)目，是衡量有機(jī)物對(duì)水質(zhì)污染質(zhì)量指標(biāo)之一。JH-CY型BOD5測(cè)定儀廣泛適用于各級(jí)環(huán)保部門、水資源管理部門及公共衛(wèi)生部門對(duì)水質(zhì)的監(jiān)測(cè)與管理。可對(duì)各種地表水、生活污水、工業(yè)廢水的BOD值進(jìn)行測(cè)定。</span></div> </div> <p></p> </dd> </dl> <div id="eoskoy0kygyw" class="main_top3"><p>產(chǎn)品介紹</p></div> <div id="eoskoy0kygyw" class="product1 pro_1"> <p><span style="font-size:16px"><span style="font-family:黑體"><strong>數(shù)字式B0D5測(cè)定儀BOD5測(cè)定裝置質(zhì)控樣品</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(hào)</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(cè)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(gè)量程</span></span></p></td></tr><tr><td><p><span style="font-size:16px"><span style="font-family:黑體">測(cè)定樣品數(shù)</span></span></p></td><td><p><span style="font-size:16px"><span style="font-family:黑體">8個(gè)</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(cè)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(cè)試標(biāo)準(zhǔn)（葡萄糖—谷氨酸標(biāo)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://img49.chem17.com/gxhpic_d55d0c909a/1612f01f3bc0aaed26e46b7c24be7d990d0303bee5adfbbaefeadb2f47aaae9960b84d1ee27068e8.jpg" style="height:800px; width:800px" /><br /><strong>數(shù)字式B0D5測(cè)定儀BOD5測(cè)定裝置質(zhì)控樣品</strong>注意事項(xiàng)：</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"><span style="color:#595959"> ⑴有害物或有毒物</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"> 從水樣或稀酸樣中除去有害物或有毒物，以排除它們對(duì)BOD</span><sub><span style="color:#595959">5</span></sub><span style="color:#595959">測(cè)定結(jié)果的影響。</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"> 樣品中的有害物或毒物將會(huì)降低樣品BOD</span><sub><span style="color:#595959">5</span></sub><span style="color:#595959">值。</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"> </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"> </span></span></span><span style="font-size:11.0000pt"><span style="color:#595959"><span style="font-family:微軟雅黑">①</span></span></span><span style="font-size:16px"><span style="font-family:黑體"><span style="color:#595959"> 將1～2gKI加入100～200mL水樣中，然后加入硫酸（1十11）酸化樣品（pH約為1）。在此步驟中，余氯會(huì)釋放出碘，加入淀粉指示劑，用Na2S2O3溶液（N／40）滴定釋放出的碘，直至出現(xiàn)的蘭色退色，在另一份相同的水樣中，加入與滴定碘等量的Na2S2O3溶液，這一步驟將會(huì)減少樣品中的余氯，用此樣品測(cè)定BOD</span><sub><span style="color:#595959">5</span></sub><span style="color:#595959">。</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"> ②樣品含有酚、重金屬、CN或其它有毒物</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"> 用稀釋水稀釋樣品能夠排除這些物質(zhì)的干擾，然后在測(cè)定前使用接種液接種樣品。</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"> ⑵接種的適宜環(huán)境（適應(yīng)于微生物的培養(yǎng)）</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"> 許多生活污水能夠用作接種液，然而，如果試驗(yàn)樣品含有酚、甲醛和一些其他抑制細(xì)菌生長(zhǎng)的物質(zhì)，那么在BOD</span><sub><span style="color:#595959">5</span></sub><span style="color:#595959">測(cè)定前應(yīng)將適宜環(huán)境的接種液加入此樣品中。</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"> 通常，接種的適宜環(huán)境可以在適合于曝氣處理的不銹鋼或非金屬容器中進(jìn)行。</span></span></span></p><p><span style="font-size:16px"><span style="font-family:黑體"><img alt="" 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