Alkalinity Test; Introduction; Preparation; Test Procedure - MERCK LSI Kit Guide De Référence Rapide

Water Analysis Kit - LSI Kit

Alkalinity Test

Introduction

This test is designed to measure the alkalinity of tap water.
MColortest
Measuring range:
Package content:
en

Preparation

Check the pH before performing the test.
K
S8.2
K
S4.3

Test procedure

4.3<pH<8.2 (K
5 ml of sample
Please refer the package insert of the Alkalinity Test (1.11109.0001) for Acid capacity to pH 8.2.

Test result

Only CaCO
Read off the result in mmol/l from the scale of the titration pipette.
The result taken from the scale (mmol/L) is to be converted in mg/L CaCO
6
TM
Alkalinity Test, Cat. No. 1.11109.0001
0.1 - 10 mmol/l H
1 bottle of reagent R-1 (indicator solution)
1 bottle of reagent R-2 (indicator solution)
2 bottles of reagent R-3 (titration solution)
1 graduated 5-ml plastic syringe
1 test vessel
1 titration pipette
1 card with brief instruction
1 package insert
can be determined only in tap water that has a pH above 8.2.
can be determined only in tap water that has a pH between 4.3 and 8.2.
, Acid capacity to pH 4.3)
S4.3
Add 2 drops of
reagent R-2 and
swirl.
value is to be focused.
3
K (mmol/L) x 50.04 = value (mg/L CaCO
S4.3
+
with 1 full pipette
Fill the dropping
Color of the solution:
blue tube of the titration
pipette with reagent
R-3.
0
Slowly add reagent
R-3 dropwise to the
sample while swir-
ling until its color
changes from blue to
red.
:
3
)
3
Read off the result
for K in mmol/L
S4.3
from the scale of the
titration pipette.
Release 07/2015