User's Guide

Etape 3 : Déterminer la concentration de Trichloramine Page 16/21
User guide of the Analysis kit for Trichloramine on the air
13
Press the "OK" button to make a new
measurement of trichloramine
OR
Press the "RETURN" button to return to the
main menu
OR
Press the "OFF" button of the triklorame to turn
off the device
3) Interpretation of the result
The measurement scale will depend on the exposure time.
After a minimum exposure time of 1h30, trichloramine can be measured.
Scale of measurement according to the exposure time :
- Exposure time <2h: 0.3 ~ 5mg/m
3
(WARNING: on a short exposure time the
measurement will be very sensitive to pollution during handling).
o Case 1 : trichloramine <0.3mg/m
3
: the trikloram will indicate that the value is
<0.3mg/m
3
and will not be able to display the exact value.
o Case 2 : 0.3 <trichloramine <5mg/m
3
: trikloramate will indicate the value at
±0.1mg/m3
- Exposure time > or = to 2h: 0 ~ 2mg/m
3
o Case 1 : 0 <trichloramine <2mg/m
3
: trikloram will indicate the value at ±0.1mg/m
3
o Case 2 : trichloramine> 2mg/m
3
: trikloram will indicate that the value is> 2mg/m
3
and
will not be able to display the exact value
The determination of the trichloramine concentration may vary due to
external pollution during handling (examples: postilion, finger on
sampling sample, tweezers tweezer, vat analysis, syringe not or poorly
washed before analysis ...)
The influence of external pollution reduces with the increase of the
duration of exposure
.