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YSI 251401Y

Ìwé Ìtọ́sọ́nà Olùlò YSI 251401Y DPD Láìsí Chlorine Reagent

For pHotoFlex and 900 Chlorine Colorimeter

1. Ọja Ipariview

The YSI 251401Y DPD Free Chlorine Reagent Powder is an EPA-approved chemical reagent designed for accurate measurement of free chlorine concentrations. This product is specifically formulated for use with YSI pHotoFlex and 900 Chlorine Colorimeter instruments, providing reliable results within a range of 0.02 to 2 mg/L. Each pack contains 100 individual 10ml volume powder packets, ensuring convenience and consistent dosing for laboratory and field applications.

YSI 251401Y DPD Free Chlorine Reagent Powder Packet

Image 1.1: A single packet of YSI 251401Y DPD Free Chlorine Reagent Powder. The label indicates "Powder Packets," "Part Number: 251401Y," "Lot Code: L 01 A," and "Exp: 01.2017." It also includes safety warnings and manufacturer contact information.

2. Safety Information and Handling

This product is intended for professional laboratory and field use only. Adherence to all safety guidelines is critical for proper and safe operation.

3. Eto ati Igbaradi

Before beginning any measurement, ensure you have the necessary equipment and that your colorimeter is calibrated according to its specific user manual.

3.1 Àwọn Ohun Èlò Tí A Nílò (Kò Sí Nínú Rẹ̀)

3.2 Reagent Igbaradi

The YSI 251401Y DPD Free Chlorine Reagent is provided in pre-measured powder packets, eliminating the need for manual weighing or dilution. Each packet contains the precise amount of reagent for a 10ml sample iwọn didun.

4. Operating Instructions for Free Chlorine Measurement

Follow these steps for accurate free chlorine measurement using the YSI 251401Y DPD Free Chlorine Reagent Powder with a compatible YSI colorimeter.

  1. Mura SampCell: Rinse a clean sample cell thoroughly with deionized water, then with a small amount of the samplati ṣe idanwo.
  2. Fọwọsi SampCell: Kun awọn sample cell with 10 ml of the water sample to be analyzed. Ensure the sample volume is precise.
  3. Fi Reagent kun: Carefully open one YSI 251401Y DPD Free Chlorine Reagent Powder packet. Add the entire contents of the powder packet to the 10 ml sample ninu sẹẹli.
  4. Àdàpọ̀: Fila awọn sample cell and invert it gently several times to dissolve the powder completely. Avoid shaking vigorously, which can introduce air bubbles. A pink color will develop if free chlorine is present.
  5. Akoko Idahun: Allow a reaction time of approximately 1 minute for the color to fully develop. Consult your colorimeter's manual for specific reaction time recommendations.
  6. Iwọn: Fi awọn s ti a ti pese silẹ siiample cell into the YSI pHotoFlex or 900 Chlorine Colorimeter. Follow the instrument's instructions to initiate the measurement. The colorimeter will display the free chlorine concentration in mg/L.
  7. Awọn abajade igbasilẹ: Record the measurement results immediately.
  8. Nu kuro: After measurement, empty the sample cell and rinse it thoroughly with deionized water.

Akiyesi: For best results, perform measurements promptly after sample collection. The DPD method is sensitive to light and temperature; protect samples and reagents from direct sunlight and extreme temperatures.

5. Itọju ati Ipamọ

Proper storage of the reagent packets is essential to maintain their integrity and ensure accurate results.

6. Laasigbotitusita

This section addresses common issues that may arise during the use of the DPD Free Chlorine Reagent.

IsoroOwun to le FaOjutu
No color development or faint color when chlorine is expected.
  • Expired reagent.
  • Insufficient mixing.
  • Sample pH outside optimal range.
  • Interfering substances in sample.
  • Check expiration date; use fresh reagent.
  • Ensure complete dissolution of powder.
  • Ṣàyẹ̀wò sample pH is within the colorimeter's specified range for DPD method.
  • Consult colorimeter manual for known interferences.
Inconsistent or erratic readings.
  • Ti ko tọ sample iwọn didun.
  • ti doti sample awọn sẹẹli.
  • Àwọn nọ́mbà afẹ́fẹ́ nínú sample sẹẹli.
  • Colorimeter calibration issue.
  • Ensure precise 10 ml sample iwọn didun.
  • Thoroughly clean sample cells before each use.
  • Gently invert to mix, avoid vigorous shaking.
  • Perform colorimeter calibration as per instrument manual.

7. Awọn pato

8. Atilẹyin ọja ati Support

For technical support, product inquiries, or to request a Safety Data Sheet (SDS), please contact YSI directly using the information below.

YSI stands behind the quality of its products. Please refer to the official YSI website or contact customer support for detailed warranty information applicable to this reagent.