LaMotte AT Visual Series Water Softener Demo Kit - Manual (Page 13)

13
pH Test
Simply, the term pH can be considered to be an “index” of the amount of hydrogen ions present in a substance.
This “index” can be used to quickly identify the acid, neutral, or alkaline (basic) nature of water. On the scale
of 0.0 to 14.0, 7.0 is considered to be neutral, acidic water is less than 7.0, and basic or alkaline water is greater
than 7.0. Water that is acidic in nature may cause corrosion of plumbing and equipment while alkaline water
may contribute to scale buildup. Neutralization by various methods is used to correct pH for proper operation of
equipment.
pH measurement may be made electronically with a pH meter or as below with a colorimetric method. The pH
indicator used is a mixture of dyes that produces a specifi c color at various pH levels.
*WARNING: Reagents marked with an * are considered to be potential health hazards. To view or print a Mate-
rial Safety Data Sheet (MSDS) for these reagents go to www.lamotte.com. To obtain a printed copy, contact
LaMotte by e-mail, phone or fax.
Use of the Octa-Slide 2 Viewer
The Octa-Slide Viewer should be held so non-direct light enters through the back of the Viewer. Slide the Octa-
Slide 2 Bar into the Viewer. Insert the reacted sample into the top of the Viewer. Match the color of the reaction
to the color standards.
TEST PROCEDURE
Fill a test tube
(0106) to the
5 mL line
with the water
sample. Insert Wide
Range pH Octa-
Slide 2 Bar
(3483-01)
into the Octa-
Slide 2 Viewer
(1101).
Insert test tube
into Octa-Slide 2
Viewer.
Match sample
color to a color
standard.
Record as pH.
Cap and mix.
Add 8 drops of
*Wide Range pH
Indicator (2218).
1. 2. 3.
4. 5. 6.