Manwal tal-Utent tar-Reaġent tat-Trab tal-Kloru Ħieles YSI 251401Y DPD

1. Prodott Aktarview

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.

Uża kif Ordnat: This product is to be used only as directed. Any other use is prohibited.
Żomm 'il bogħod mit-Tfal: Store and use this product out of reach of children.
Safety Data Sheet (SDS): A detailed Safety Data Sheet is available upon request for professional users. It contains comprehensive information regarding chemical properties, hazards, safe handling, emergency procedures, and disposal.
Tagħmir Protettiv Personali (PPE): Always wear appropriate personal protective equipment, such as safety glasses and gloves, when handling chemical reagents.
Ventilazzjoni: Uża f'żona ventilata tajjeb.
Rimi: Dispose of used reagents and samples skont ir-regolamenti ambjentali lokali.

3. Setup u Preparazzjoni

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

3.1 Required Materials (Not Included)

YSI pHotoFlex or 900 Chlorine Colorimeter
Naddaf sample cells/vials
Deionized water (for rinsing and blanking)
Sample li għandu jiġi ttestjat

3.2 Preparazzjoni tar-Reaġent

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 sampil-volum.

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.

Ipprepara SampĊellula: Rinse a clean sample cell thoroughly with deionized water, then with a small amount of the sample jkun ittestjat.
Imla SampĊellula: Imla l-sample cell with 10 ml of the water sample to be analyzed. Ensure the sample volume is precise.
Żid ir-Reaġent: Carefully open one YSI 251401Y DPD Free Chlorine Reagent Powder packet. Add the entire contents of the powder packet to the 10 ml sample fiċ-ċellola.
Ħallat: Kap is-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.
Ħin ta' Reazzjoni: Allow a reaction time of approximately 1 minute for the color to fully develop. Consult your colorimeter's manual for specific reaction time recommendations.
Miżura: Daħħal l-s ippreparatample 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.
Riżultati tar-Reġistrazzjoni: Record the measurement results immediately.
Naddaf: After measurement, empty the sample cell and rinse it thoroughly with deionized water.

Nota: 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. Manutenzjoni u Ħażna

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

Kundizzjonijiet tal-Ħżin: Store the YSI 251401Y DPD Free Chlorine Reagent Powder packets in a cool, dry place, away from direct sunlight and extreme temperatures.
Ippakkjar oriġinali: Keep the packets in their original packaging until ready for use to protect them from moisture and contamination.
Data ta' Skadenza: Always check the expiration date printed on each packet (e.g., "Exp: 01.2017" as shown in Image 1.1). Do not use expired reagents, as they may yield inaccurate results.
Rimi: Dispose of expired or unused reagents according to local hazardous waste regulations.

6 Issolvi l-problemi

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

Problema	Kawża Possibbli	Soluzzjoni
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. Verify sample pH is within the colorimeter's specified range for DPD method. Consult colorimeter manual for known interferences.
Inconsistent or erratic readings.	Mhux xieraq sampil-volum. Kontaminat sample ċelluli. Air bubbles in sample cell. Colorimeter calibration issue.	Ensure precise 10 ml sampil-volum. Thoroughly clean sample cells before each use. Gently invert to mix, avoid vigorous shaking. Perform colorimeter calibration as per instrument manual.

7. Speċifikazzjonijiet

Isem tal-Prodott: YSI 251401Y DPD Free Chlorine Reagent Powder
Numru tal-Parti: 251401Y
Applikazzjoni: Free Chlorine Measurement
Kompatibilità: YSI pHotoFlex and 900 Chlorine Colorimeter
Approvazzjoni: Approvat mill-EPA
Volume per Packet: 10 ml (for 10 ml sample)
Medda ta' Kejl: 0.02 sa 2 mg / L
Kwantità: Pack of 100 packets
Formola tal-Oġġett: Trab
Piż tal-oġġett: Approximately 2.4 Ounces (for the pack)

8. Garanzija u Appoġġ

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

Manifattur: YSI
Indirizz: 1725 Brannum Lane, Yellow Springs, OH 45387, USA
Telefon: 800-897-4151; 1-937-767-7241
Websit: www.ysi.com
Email: ambjentali@ysi.com

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.

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YSI 251401Y