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在飲用水安全、游泳池水質(zhì)管理、污水處理及食品加工消毒過(guò)程中,余氯作為重要的消毒劑殘留指標(biāo),其濃度高低直接關(guān)系到殺菌效果與人體健康。過(guò)高可能產(chǎn)生異味與刺激,過(guò)低則無(wú)法有效抑制微生物。余氯測(cè)試儀作為精準(zhǔn)測(cè)氯的工具,通過(guò)DPD比色法或電化學(xué)傳感器技術(shù),快速測(cè)定水中游離氯、總氯含量,為水...
PH酸度計(jì)的級(jí)別和儀器的準(zhǔn)確度是不同的兩個(gè)概念,儀器級(jí)別與其準(zhǔn)確度并不完wan全一致。酸度計(jì)的級(jí)別是按其指示器(簡(jiǎn)稱電計(jì))的分度值(分辨率或小顯示值)表示的,例如:分度為0.1pH的儀器稱為0.1級(jí)儀器;小顯示值為0.001pH的儀器稱為0.001級(jí)儀器,等等。而儀器的準(zhǔn)確度是電...
污水ph計(jì)是指用來(lái)測(cè)定溶液酸堿度值的儀器,是利用原電池的原理工作的,原電池的兩個(gè)電極間的電動(dòng)勢(shì)依據(jù)能斯特定律,和電極的自身屬性以及溶液里的氫離子濃度有關(guān)。原電池的電動(dòng)勢(shì)和氫離子濃度之間存在對(duì)應(yīng)關(guān)系,氫離子濃度的負(fù)對(duì)數(shù)即為pH值。它是一種常見(jiàn)的分析儀器,廣泛應(yīng)用在農(nóng)業(yè)、環(huán)保和工業(yè)等...
冷卻水污染防治方法和添加水處理藥劑的建議1,改善新水水質(zhì)狀態(tài),添加水處理劑殺滅水中藻類。2,調(diào)整循環(huán)水的濃縮倍數(shù),采取排水補(bǔ)水措施,給予適當(dāng)?shù)难a(bǔ)水,使水中的PH值和堿度在短時(shí)間內(nèi)回升。3,敞開(kāi)式循環(huán)水的腐蝕,主要是在水中添加一定量的水處理劑(如緩蝕阻垢劑、殺菌劑等)來(lái)控制的,因此...
pH電極(PH計(jì)電極,PH傳感器)的特點(diǎn):⑴不對(duì)稱電勢(shì):當(dāng)電極的內(nèi)外參比電極,內(nèi)外參比溶液均相同時(shí),理論上電池電動(dòng)勢(shì)應(yīng)等于零,但實(shí)際上總有幾毫伏到幾十毫伏的電勢(shì)差存在,這說(shuō)明玻璃球泡內(nèi)外二個(gè)界面是不對(duì)稱的,這一電勢(shì)差就稱為不對(duì)稱電勢(shì)。不對(duì)稱電勢(shì)與球泡吹制的工藝有關(guān),也與使用中球泡...
冷卻水污染防治方法和添加水處理藥劑的建議1,改善新水水質(zhì)狀態(tài),添加水處理劑殺滅水中藻類。2,調(diào)整循環(huán)水的濃縮倍數(shù),采取排水補(bǔ)水措施,給予適當(dāng)?shù)难a(bǔ)水,使水中的PH值和堿度在短時(shí)間內(nèi)回升。3,敞開(kāi)式循環(huán)水的腐蝕,主要是在水中添加一定量的水處理劑(如緩蝕阻垢劑、殺菌劑等)來(lái)控制的,因此...
常常收到很多用戶的咨詢,為了讓所有有相同疑問(wèn)的小伙伴們也可以知道答案,闊思小伙伴挑選了一些常見(jiàn)問(wèn)題進(jìn)行解答。我們的話題是關(guān)于pH的溫度補(bǔ)償,希望能給大家?guī)?lái)一些幫助!客戶:我購(gòu)買的緩沖液是7.00的,為什么校準(zhǔn)出來(lái)顯示7.02?而且我冬天測(cè)試的值與夏天測(cè)試的值怎么也不一樣?闊思小...
電阻率儀對(duì)于半導(dǎo)體材料的電阻率,一般采用四探針、三探針和擴(kuò)展電阻。電阻率是反映半導(dǎo)體材料導(dǎo)電性能的重要參數(shù)之一。測(cè)量電阻率的方法很多,四探針?lè)ㄊ且环N廣泛采用的標(biāo)準(zhǔn)方法。其特點(diǎn)是主機(jī)配置雙數(shù)字表,在測(cè)量電阻率的同時(shí),另一塊數(shù)字表(以萬(wàn)分之幾的精度)適時(shí)監(jiān)測(cè)全程的電流變化,免除了測(cè)量...
溶氧測(cè)試儀屬于高精度溶氧測(cè)定儀。在溶解氧測(cè)定過(guò)程中,能夠同步進(jìn)行溫度的自動(dòng)訂正,避免了反應(yīng)杯內(nèi)溫度變化對(duì)測(cè)定結(jié)果的影響,從而可以選擇性地去掉恒溫系統(tǒng)。尤其特殊的是,無(wú)需連接計(jì)算機(jī)系統(tǒng)也可以自動(dòng)計(jì)算和顯示植物光合或呼吸速率。該儀器設(shè)計(jì)輕巧、操作簡(jiǎn)便,適應(yīng)性廣,精度很高,非常適合生物...
多參數(shù)水質(zhì)測(cè)試儀是運(yùn)用高性能電子機(jī)械技術(shù)研發(fā)而成。專門(mén)測(cè)定COD、氨氮、總磷等多參數(shù),針對(duì)于污水排放企業(yè)量身定做的一款高性價(jià)比的測(cè)定儀,操作簡(jiǎn)單即耐用,符合國(guó)標(biāo)要求。多參數(shù)水質(zhì)測(cè)試儀功能特點(diǎn):1.直接測(cè)定化學(xué)需氧量(COD)、氨氮、總磷等多項(xiàng)參數(shù),濃度直讀;2.大屏幕顯示測(cè)定數(shù)據(jù)...
PH計(jì),是一種常用的儀器設(shè)備,主要用來(lái)精密測(cè)量液體介質(zhì)的酸堿度值,配上相應(yīng)的離子選擇電極也可以測(cè)量離子電極電位MV值,廣泛應(yīng)用于工業(yè)、農(nóng)業(yè)、科研、環(huán)保等領(lǐng)域。該儀器也是食品廠、飲用水廠辦QS、HACCP認(rèn)證中的必bi備檢驗(yàn)設(shè)備。儀器在連續(xù)使用時(shí),每天要標(biāo)定一次。在測(cè)量電極插座處拔...
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