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長沙巴躍COD消解儀
消解器執行HJ828-2017水質化學需氧量的測定,重鉻酸鹽法,分析方法規范地制定了水質化學需氧量COD(cr)的測定步驟,嚴格地規定了方法的加熱消解時間、溶液酸度、氧化劑和催化劑的用量等條件指標。顯而易見,水質COD(cr)的測定是有嚴格的條件規定,違背了條件規定進行操作,就會影響測定的準確性。遵循了標準(ISO)和標準(HJ)的基本原則,保證了回流加熱微沸2小時的消解操作,試劑溶液的配制和加入量都和HJ法一致,確保可靠的分析結果。
二、產品特點長沙巴躍COD消解儀
系列COD消解器采用微機技術進行定時控制加熱電爐,可對12個24#標準磨口的消解回流裝置同時進行加熱。達到節能、減低電力負荷、提率的目的。
采用玻璃毛刺回流管代替球形回流管,并以風冷技術取代自來水冷卻方式,既可以節水又能使儀器規范化,同時還提高了儀器使用的安全性。儀器的化學溶液配制、
操作和COD的計算完全遵照HJ828-2017,低于50mg/L的COD水樣可通過稀釋滴定劑和氧化劑來提高度,高于700mg/L的COD水樣,可以通過水樣的比例稀釋來完成測定。
三、技術特點
1、升降溫速度快。
2、消解瓶消解完畢后可直接滴定測量,方便搖勻。
3、加熱均勻、使用壽命長。
4、可以設定消解時間,消解完畢后,儀器自動停止加熱,可無人看管。
5、樣品消解完畢后,儀器風機繼續工作,輔助樣品冷卻。
6、以風冷取代水冷,節約用電、用水,提高了效率,增強了儀器的安全性。
| 測量范圍 | 10~1000mg/L(大于1000mg/L的水樣稀釋后測定) | ||||
| 稀釋后測定消解時間 | 10分鐘-2小時(用戶可通過按鍵自行調整消解時間) | ||||
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測量誤差 |
鄰苯二甲酸氫鉀標準溶液(500mg/L)、 相對標準偏差不大于5.0%、工業有機廢水(500mg/L) 相對標準偏、差不大于8.0% |
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| 消解樣品數 | 12個(采用24#磨口的150mL消解瓶) | ||||
| 加熱功率 | 1000W | 1500W | 2000W | ||
| 冷卻方式 | 風冷 | ||||
| 加熱材質 | 陶瓷 | 陶瓷 | 陶瓷 | ||
| 備注 |
其他加熱材質和消解數量可根據客戶要求定制 |
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I. product overview
QYC0D series COD disintegrators perform the determination of chemical oxygen demand (COD) in water quality from hj828-2017. Dichromate
method is used to formulate the determination steps of COD (cr) in water quality in a standardized way. The co
such as the heating and digestion time, the acidity of the solution, the amount of oxidant and catalyst, etc., are strictly specified. Obviously,
the determination of COD (cr) in water is subject to strict requirements. If the operation violates the requirements, the accuracy of the
determination will be affected. In accordance with the basic principles of internatio
the digestion operation of reflux heating micro boiling for 2 hours is guaranteed. The preparation and addition amount of reagent
solution are co
Ii. Product features
QYC0D series COD disintegrator adopts microcomputer technology to co
used to heat 12 24# standard grinding mouth dissolving reflux devices at the same time. To save energy, reduce power load and
improve efficiency. Adopting glass burr reflux pipe instead of spherical reflux pipe and replacing tap water cooling with air cooling
technology can both save water and standardize the instrument, and at the same time improve the safety of the instrument.
The chemical solution preparation, operation and COD calculation of the instrument completely comply with hj828-2017.
COD water samples less than 50mg/L can be improved by diluting titrant and oxidant, while COD water samples
higher than 700mg/L can be determined by diluting the proportion of water samples.
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免責聲明:以上所展示的[ 長沙巴躍COD消解儀]信息由會員[上海喬躍實有限公司]自行提供,內容的真實性、準確性和合法性由發布會員負責。