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    ชุดทดสอบความเป็นกรด-ด่างของน้ำ (1000 mg/L (ISO)

    HI 3898
    Chloride Rapid Screening Test for COD – ISO and EPA
    Product Description:This screening test is a quick test to detect high chloride levels in water and wastewater that might cause interference with official COD methods. The test is in accordance with the ISO 15705:2002 method, and indicates within seconds a YES/NO possibility of having chloride interference on COD measurements. The kit can be used for checking 1000 ppm chloride concentration for the ISO COD testing, or for a 2000 ppm chloride check for the USEPA, APHA, AWWA and WEF methods.

    Upon adding the indictor to the sample, the solution turns yellow. Then the chloride titrant is added and a white precipitate is formed if chlorides are present. If the chloride concentration is lower than 1000 ppm for ISO, or 2000 ppm for EPA, a orange-brown complex is formed. If the solution remains yellow, high chloride concentrations are present.

    Order Information:

    HI 3898 test kit comes with 25 mL chloride titrant bottles (4), 7 mL chloride indicator, glass cuvette with plastic stopper and1.0 mL calibrated syringes with tips (2).


    Method           Visual
    Range           1000 mg/L (ISO)
    2000 mg/L (EPA)
    Smallest Increment           N/A
    Chemical Method           Silver nitrate
    Number of Tests           100
    Weight           200 g





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    Klong 1, Klong Luang, Pathumthani 12120 Thailand. 

    Tel.  02-191-3928 Fax 02-191-3929

    For more information please contact 081-847-6768 (Ms. Nareerat) IDLine: @alltestkit

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