ഹാച്ച് ഹാർഡ്‌നെസ് ടോട്ടൽ റീജന്റ് സെറ്റ് HA-71A ടെസ്റ്റ് കിറ്റ് ഇൻസ്ട്രക്ഷൻ മാനുവൽ

ആമുഖം

This manual provides instructions for the Hach Hardness Total Reagent Set, Model 2437800. This set is designed for use with the HA-71A Test Kit to accurately determine total hardness in water samples using the drop count titration method. The reagents allow for measurements in the range of 0-20 mg/L (0-20 gpg) as CaCO₃.

ചിത്രം 1: Hach Hardness Total Reagent Set (Model 2437800) containing Buffer Solution (Hardness 1), Hardness 2, and Hardness 3 Test Solutions.

സുരക്ഷാ വിവരങ്ങൾ

Always read and understand the Safety Data Sheets (SDS) for all reagents before use. SDS are available on the Hach website. Follow all local, state, and federal regulations for chemical handling and disposal.

• Wear appropriate personal protective equipment (PPE), including safety glasses and gloves, when handling reagents.
• Avoid contact with skin and eyes. In case of contact, rinse immediately with plenty of water and seek medical advice.
• Do not ingest reagents. If ingested, seek immediate medical attention.
• Keep reagents out of reach of children and pets.
• Store reagents in a cool, dry, well-ventilated area, away from incompatible materials.

ഉൽപ്പന്ന ഘടകങ്ങൾ

The Hach Hardness Total Reagent Set (Model 2437800) includes the following solutions:

• Buffer Solution (Hardness 1): Used to adjust the pH of the sample.
• Hardness Indicator Solution (Hardness 2): Changes color in the presence of hardness ions.
• EDTA Titrant Solution (Hardness 3): Used to titrate the sample until the endpoint is reached.

Note: This product contains only the reagent solutions. Other components of the HA-71A Test Kit, such as sample cells, mixing bottles, or a titrator, are sold separately.

സജ്ജീകരണവും തയ്യാറെടുപ്പും

Before beginning the hardness test, ensure you have the following items ready:

• Hach Hardness Total Reagent Set (Model 2437800)
• HA-71A Test Kit components (e.g., sample cell, mixing bottle, titrator, if applicable)
• Clean, deionized water for rinsing
• വെള്ളം എസ്ample to be tested
• Appropriate personal protective equipment (PPE)

Sample ശേഖരം

Collect a representative water sample in a clean container. For best results, test samples as soon as possible after collection. Avoid collecting samples that contain excessive air bubbles or suspended solids.

Operating Instructions: Total Hardness (Drop Count Titration)

This procedure outlines the steps for determining total hardness using the Hach Hardness Total Reagent Set (Model 2437800) and the drop count titration method. Refer to your HA-71A Test Kit manual for specific sample volumes and equipment usage.

1. എസ് തയ്യാറാക്കുകampLe: Measure the specified volume of water sample (e.g., 25 mL or 50 mL, as per HA-71A kit instructions) into a clean sample cell or mixing bottle.
2. Add Buffer Solution: 2 തുള്ളി ചേർക്കുക Buffer Solution (Hardness 1) എസ് വരെample. Swirl gently to mix.
3. Add Indicator Solution: 2 തുള്ളി ചേർക്കുക Hardness Indicator Solution (Hardness 2) എസ് വരെample. Swirl gently to mix. The sample should turn red if hardness is present. If the sample turns blue, it indicates zero hardness, and no further titration is needed.
4. Titrate with EDTA: ചേർക്കുക EDTA Titrant Solution (Hardness 3) drop by drop to the sample, swirling after each drop. Count the number of drops added.
5. നിറവ്യത്യാസം നിരീക്ഷിക്കുക: Continue adding drops until the color of the sample changes from red to a clear blue. This is the endpoint of the titration.
6. റെക്കോർഡ് ഫലങ്ങൾ: The number of drops of EDTA Titrant Solution (Hardness 3) required to reach the blue endpoint directly corresponds to the total hardness of the sample. Refer to your HA-71A Test Kit instructions for the conversion factor (e.g., 1 drop = 1 mg/L or 1 gpg as CaCO₃).
7. Rinse Equipment: Thoroughly rinse all glassware and equipment with deionized water after each test.

For precise results, ensure consistent drop size and careful observation of the color change.

പരിപാലനവും സംഭരണവും

• സംഭരണം: Store the reagent bottles tightly capped in their original packaging, in a cool, dry place, away from direct sunlight and extreme temperatures. Refer to the reagent labels for specific storage temperature ranges.
• ഷെൽഫ് ലൈഫ്: Observe the expiration dates printed on the reagent labels. Using expired reagents may lead to inaccurate results.
• കൈകാര്യം ചെയ്യൽ: Avoid contamination of reagents. Do not return unused reagent to the original bottle.
• നീക്കം ചെയ്യൽ: Dispose of used reagents and samples according to local environmental regulations. Consult the Safety Data Sheets (SDS) for specific disposal instructions.

ട്രബിൾഷൂട്ടിംഗ്

സ്പെസിഫിക്കേഷനുകൾ

• ഉൽപ്പന്നത്തിൻ്റെ പേര്: Hach Hardness Total Reagent Set
• മോഡൽ നമ്പർ: 2437800
• അളക്കൽ രീതി: Drop Count Titration
• അളക്കൽ ശ്രേണി: 0-20 mg/L (0-20 gpg) as CaCO₃
• നിർമ്മാതാവ്: HACH കമ്പനി
• ഘടകങ്ങൾ: Buffer Solution (Hardness 1), Hardness Indicator Solution (Hardness 2), EDTA Titrant Solution (Hardness 3)

പിന്തുണയും ബന്ധപ്പെടാനുള്ള വിവരങ്ങളും

For technical assistance, product inquiries, or to access Safety Data Sheets (SDS), please visit the official Hach website or contact Hach customer support.

ഹാച്ച് ഒഫീഷ്യൽ Webസൈറ്റ്: www.hach.com

പിന്തുണയുമായി ബന്ധപ്പെടുമ്പോൾ നിങ്ങളുടെ ഉൽപ്പന്ന മോഡൽ നമ്പർ (2437800) ലഭ്യമാക്കുക.