33
CHEMICAL ANALYSIS INFORMATION, continued
Using Reagent Powder Pillows
Hach uses dry powdered reagents when possible. This minimizes leakage
and deterioration problems. Some powders are packaged in individual,
pre-measured, polyethylene "powder pillows" or foil pillows called
PermaChem
®
pillows. Each pillow contains enough reagent for one test.
Open the poly powder pillows with nail clippers or scissors; see Figure 7.
Figure 7 Opening Powder Pillows
Using PermaChem Pillows
1. Tap the pillow on a hard surface to collect the powdered reagent in
the bottom.
2. Tear (or cut) across the top of the pillow, from B to A, holding the
pillow away from your face.
3. Using two hands, push both sides toward each other to form a spout.
4. Pour the pillow contents into the sample cell and continue the
procedure according to the instructions. Tap the pillow to remove any
powder from the corners.
To Next Page
Loading...
