Camlab Lovibond MD 610, Instruction Manual

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289
MD 610_2d 11/2019
12. Removethe vial from the sample chamber and empty
the vial .
13. Add the digested water sample to the 10 ml mark.
14. Placethe vial in the sample chamber making sure that
the
marks are aligned.
15. Press TEST key.
The result is shown in the display in mg/L Benzotriazole
or Tolyltriazole (note 4).
Notes:
1. UV lamp and Triazole Powder Pack available on request.
2. While the UV lamp is on UV safety goggles must be worn.
3. For handling of the UV lamp seemanufacturer's manual.
Do not touch the surface of the UV lamp. Fingerprints will etch the glass.
Wipe the UV lamp with a soft and clean tissue between measurements.
4. The test will not distinguish between benzotriazole and tolyltriazole.
5. The analysisshould take place immediately after taking the sample.
6. Strong oxidising or reducting agents i n the vial lead to incorrect measurements.
7. To get accurate results the sample temperature must be between 20°C and 25°C.
8. If sample contains nitrite or borax (sodium borate), adjust the pH between 4 and 6
with 1 N sulfuric acid.
9. If the sample contains more than 500 mg/l CaCO
3
hardness(CaCO
3
), add 10 drops of
Rochelle Salt Solution.
10. A yellow colour will form if Triazolis present.
11. Low results will occur if photolysis (lamp on) takes place for more than or lessthan five
minutes.
12. Benzotriazole
Tolyltriazole
Reagent Form of reagent/Quantity Order-No.
VARIO TRIAZOLERgt F25 Powder Pack / 100 532200
Zero accepted
prepare Test
press TEST