ORBECO SP600, Instruction Manual, Page: 50 / 334

48 SP600 Spectrophotometer 01/2008
1.1 Methods
Chloride
with Reagent Test
5 – 60 mg/l Cl
–
Use two clean vials (24 mm Ø) and mark one as blank for
zeroing.
1. Fill a clean vial (24 mm Ø) with 10 ml of deionized
water (this is the blank).
2. Fill the second clean vial (24 mm Ø) with 1 ml of the
water sample and 9 ml of deionized water (this is
the sample).
3. Fill each vial with the same size drops by holding the
bottle vertically and squeeze slowly:
3 drops Chloride-51
4. Close the vials with the caps tightly and invert the vials
several times to mix the contents.
5. Fill each vial with the same size drops by holding the
bottle vertically and squeeze slowly:
3 drops Chlorid-52
6. Close the vials with the caps tightly and invert the vials
several times to mix the contents.
7. Press [ ] key.
Wait for a reaction period of 3 minutes .
8. Place the vial (the blank) in the sample chamber making
sure that the marks are aligned.
9. Press ZERO key.
10. Remove the vial from the sample chamber.
11. Place the vial (the sample) in the sample chamber ma-
king sure that the marks are aligned.
12. Press TEST key.
The result is shown in the display in mg/l Chloride.
prepare Zero
press ZERO
Zero accepted
prepare Test
press TEST
Countdown
3:00
start:
9 1