User's Guide

Etape 2 : Prélever un échantillon d’air Page 8/21

User guide of the Analysis kit for Trichloramine on the air

V. Step 1 : Cleaning the equipment

1) Equipment to clean

Id Designation

3 Cuvette of analysis

4 Filter clamp

5 Syringe 10 mL

2) Cleaning the filter clamp

N° Action Picture

Clean the filter clamp [4] by pouring

demineralized water over it.

3) Cleaning the syringe

N° Action Picture

Clean the outside of the syringe [5] by pouring

demineralized water over it.

Clean the inside of the syringe [5] by filling it

and emptying it several times with

demineralized water.

This step must be done :

- Before each new sample

Cleaning must be done with demineralized water, this step is essential before sampling.

All utensils in contact with the sample as well as the test solution must be sound.

Improper cleaning will lead to a flawed analysis!

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Etape 2 : Prélever un échantillon d’air V. Page 8/21 Step 1 : Cleaning the equipment This step must be done : - Before each new sample Cleaning must be done with demineralized water, this step is essential before sampling. All utensils in contact with the sample as well as the test solution must be sound.
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Etape 2 : Prélever un échantillon d’air Page 9/21 4) Cleaning the cuvette N° Action 1 Fill the syringe with demineralized water. 2 Inject the demineralized water into the analysis cuvette and close it with the cap.
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Etape 2 : Prélever un échantillon d’air User guide of the Analysis kit for Trichloramine on the air Page 10/21
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Etape 2 : Prélever un échantillon d’air VI. Page 11/21 Step 2 : Capturing trichloramine in the air 1) Exposure time The measurement scale will depend on the exposure time. It takes a minimum exposure time of 1h30. Scale of measurement according to the exposure time : - Exposure time <2h: 0.3 ~ 5mg/m3 (WARNING: on a short exposure time the measurement will be very sensitive to pollution during handling). o Case 1 : trichloramine <0.3mg/m3: the trikloram will indicate that the value is <0.