Pasco EZ-2340 Alkalinity ezSample Field Titrator Manual de usuario descargar pdf

012-10116

Alkalinity ezSample™ Field Titrator (EZ-2340)

10–100 ppm (mg/L) CaCO

Safety Information

Read the MSDS before performing this test procedure. Wear safety glasses and disposable gloves.

Sample Pretreatment

If the sample is turbid, it must be filtered prior to performing this test procedure.

Test Procedure

1. Fill the sample cup to the 20 mL mark

with the sample (Figure 1).

2. Add 6 drops of A-9800 Activator

Solution (Figure 2). Stir briefly to mix

the contents of the sample cup.

NOTE: The sample should now be green. If

it is pink, total alkalinity is 0 ppm. There is

no need to continue.

3. Gently snap the tip of the ezSample

Snap Vial (ampoule) at the white ring

nearest the end of the tapered tip

(Figure 3).

NOTE: When the tip is snapped, the flexible

tubing will remain in place on the tapered

neck of the ampoule.

4. Lift the control bar and insert the

ampoule assembly into the titrator

(Figure 4).

NOTE: The rigid sample pipe will extend

approximately 1.5 inches beyond the body of

the titrator.

5. Hold the titrator with the sample pipe

in the sample and press the control bar

firmly, but briefly, to pull in a small

amount of sample (Figure 5). The

contents will turn a PINK color.

NOTE: NEVER press the control bar unless

the sample pipe is immersed in the sample.

6. With the sample pipe in the sample,

press the control bar again briefly to

allow another small amount of sample

to be drawn into the ampoule.

7. After each addition, rock the entire assembly to mix the contents of the ampoule. Watch for a color

change from PINK to

BRIGHT GREEN.

8. Repeat steps 6 and 7 until a permanent color change occurs.

9. When the color of the liquid in the ampoule changes to GREEN, remove the ampoule from the Titrator.

Hold the ampoule in a vertical position and read the scale opposite the liquid level (Figure 6).

Figure 5

Figure 2

Figure 1

Figure 3

Figure 4

Figure 6

1 2

Indice de contenidos

Pagina 1 - Test Procedure

1 012-10116 Alkalinity ezSample™ Field Titrator (EZ-2340) 10–100 ppm (mg/L) CaCO3 Safety Information Read the MSDS before performing this test pr

Pagina 2 - Test Method Description

2 012-10116 Test Method Description The alkalinity ezSample test method employs an acid titrant and a mixed pH indicator.1–3 Results are expresse

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