Omega TRCN443, Руководство пользователя

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Instructions on how to prepare Calibration Solutions
11.
Turbidity Standard
14
1. Standard Zero
2. Standard Solutions
In order to obtain a turbidity close to Zero, use a good quality deionized or distilled water and filter it twice in
a roll, using a 0.2
The instrument is not supplied with a 100mL bottle of 1000NTU Stabilized Standard Solution, model# TRS-
444, for dilution and calibration purpose. The Formazine Standard should be ordered separate!
For best storage conditions place the solution in a dark bottle and store it in a fresh and dark
place.
For best storage conditions place the solution in a dark bottle and store it in a fresh and dark
place.
For best storage conditions place the solution in a dark bottle and store it in a fresh and dark
Place.
µm filter and teorically you will obtain a water with 0.12NTU, that can be considered Zero
(Blank).
Note: this water will be used to dilute the standard.
1 - Necessary Materials:
1.1 - 1 Volumetric Flask 100 mL
1 Volumetric Pipette 50 mL
2 L Distilled or Deionized Water, Filtered (0.2 µm)
2 - Calibration Solution 500 NTU
2.1 -
In a 100ml Volumetric Flask, using the Volumetric Pipette add 50ml of 1000NTU Stabilized Standard
Solution.
2.2 - Add filtered water up to the mark on the flask.
2.3 - Before using the solution mix it by gently inverting the flask several times. Avoid creating bubbles.
2.4 - The Solution is Valid for 15 days.
3 - Calibration Solution 100 NTU
3.1 -
In a 100ml Volumetric Flask, using the Volumetric Pipette add 10ml of 1000NTU Stabilized Standard
Solution.
3.2 - Add filtered water up to the mark on the flask.
3.3 - Before using the solution mix it by gently inverting the flask several times. Avoid creating bubbles.
3.4 - The Solution is Valid for 10 days.
3.5 - After its use, discharge the solution.
4 - Calibration Solution 10 NTU
4.1 - In a 100ml Volumetric Flask, using the Volumetric Pipette add 1ml of 1000NTU Stabilized Standard
Solution.
4.2 - Add filtered water up to the mark on the flask.
4.3 - Before using the solution mix it by gently inverting the flask several times. Avoid creating bubbles.
4.4 - Stir it manually for before using it.
4.4 - The Solution is Valid for 5 days.
4.5 - After its use, discharge the solution.
Note:
Note:
Note:
Attention: for TURBIDITY, this instrument MUST BE calibrated using
Formazine Standard and cannot be calibrated using Polymers!!!