Test Procedures
PROCEDURE
Use universal sample holder.
1. Press
ON
button to turn spectrophotometer on.
2. Scroll to and select
PROGRAMMED TESTS
.
3. Scroll to and select
ALL TESTS
(or another sequence containing
86 Silica Hi
) from
TESTING MENU
.
4. Scroll to and select
86 Silica Hi
from menu.
5. Rinse a clean tube (0290) with sample water. Fill to the 10 mL line with sample.
6. Insert tube into chamber, close lid and select
SCAN BLANK
.
7.
Remove tube from Spectro. Add 6 drops *Silica Reagent #1 (V-4466). Cap and invert
to mix.
8. Add 12 drops of *Silica Reagent #2 (V-4467). Cap and mix. Wait 5 minutes.
9. At end of 5 minute waiting period, add 8 drops of *Silica Reagent #3 (V-4468). Cap
and mix.
10. Insert tube into chamber, close lid and select
SCAN SAMPLE
. Record result.
11. Press and hold
OFF
button to turn spectrophotometer off or press
EXIT
button to exit
to a previous menu or make another menu selection.
NOTE: To extend the range to 100 ppm, perform a 2:1 dilution of water sample, with silica-
free water. Perform test and multiply result by 2.
SMART Spectro 2 Test Procedures 05.02.16
SILICA
, HIGH RANGE
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