UNITOR-SPACTRAPAK-310

Water Test Kits
Unitor's Combined Boiler Water Treatment Programme

Product no: 661 555474
The tests recommended to maintain boiler water within the desired level of quality when treating with Unitor Liquitreat/Combitreat are as follows:
A. p-Alkalinity - Recommended Limits: 100-300 ppm as CaCO₃
B. Chlorides - 200 ppm maximum as Cl-.
C. Condensate pH - 8.3-9.0
D. Hotwell temperature >80°C
Dosage level of Liquitreat/Combitreat is based on the P-alkalinity value of the boiler water. However, chlorides and condensate pH must also be controlled and maintained as recommended. Knowledge of all relevant parameters is desirable to enable better interpretation and correct application of treatment. To increase the condensate pH, use Unitor's Condensate Control in conjunction with your combined product boiler water treatment. It is recommended to dose Condensate Control on a continuous basis, to maintain the condensate pH within the recommended range of 8.3-9.0 at all times.
Controlling Alkalinity
The alkalinity is a more accurate indicator of the boiler water condition than pH. The phenolphthalein (P) alkalinity is measured to determine whether the correct conditions of alkalinity exist in the boiler. 
 

Controlling Chlorides
The chloride value will reveal any presence of dissolved salts in the boiler. An increase, gradual or sudden, in the level of chloride is an indication of contamination by sea water and the chloride level is often used as a reference point when controlling rate of blowdown.
pH BOILER
Recommended limits of 9.5-11.0. An additional test to determine the pH of the boiler water can be carried out to give a better overall understanding of the boiler water quality.
Condensate pH
To control corrosion in a boiler, condensate and feed water section, the condensate pH should be kept between 8.3 and 9.0. Monitoring the pH of this water is very important in maintaining a complete Boiler Water Treatment Management Programme.
Test results - Combined treatment
A. Recording - Always use Unitor's Rapid Response log forms to record all readings and to keep track of all results.
1. Log form - Combined Boiler Water Treatment Log, No. 310.
2. Frequency - Samples should be drawn, tested and results logged minimum every third day.
B. Reporting - The completed log sheet for the month should be distributed as shown at the bottom of the form, at the end of each month:
1. Blue copy - to Unitor Rapid Response Centre in Norway (address labels at back of log pad)
2. Beige copy - Vessel owner
3. Lilac copy - to be kept onboard
C. Evaluation
1. Logs will be reviewed at the Unitor Rapid Response Centre for adherence to recommended specifications, by Unitor's Rapid Response staff.
2. A report letter indicating the status of the ship’s system, any problems and relevant recommendations will be issued to the ship's operator.
 
SPECTRAPAK 310
Low Pressure Boiler Water Test Kit
Boiler Water Treatment Test Kit P. ALKALINITY, CHLORIDE & pH   
Product no: 661 555474

PALKALINITY TEST
1. Take a 200 ml water sample in the stoppered bottle provided.
2. Add one P. Alkalinity tablet and shake to disintegrate. If P. Alkalinity is present the sample will turn blue.
3. Repeat tablet addition until the blue colour changes to permanent yellow.
Calculation
P. Alkalinity ppm (CaCO3) = (Number of tablets used x 20) -10.
For example:
lf 8 tablets are used then P. Alkalinity = (8 x 20) -10 = 150 ppm.
4. Mark this result on the log sheets provided, against the date on which the test was taken.
Chloride test
1. For boilers under 30 bar (KG/CM2) take a 50 ml sample in the stoppered bottle provided.
2. Add one chloride tablet and shake to disintegrate, sample will turn yellow if chlorides are present
3. Repeat tablet addition until the yellow colour changes to orange/brown.
Chloride (cont.) calculation (50 ml sample)
Chloride ppm = (number of tablets used x 20)-20 For example: lf 4 tablets are used then chloride ppm = (4 x 20) -20 = 60 ppm.
4. Mark the result obtained on the log sheets provided, against the date on which the test was taken.
N.F. For higher expected chloride levels reduce the water sample size e.g. 25 ml sample will give steps of 40 ppm per tablet used. For lower expected chloride levels increase the water sample volume e.g. 1OO ml sample will give steps of 1O ppm per tablet used. 
pH test
7.5-14.0 For boiler water
6.5-10.0 For condensate water
1. Take a 50 ml sample of water to be tested in the plastic sample container provided.
2. Using the white 0.6 gram scoop provided, add one measure of the pH reagent to the water sample, allow to dissolve - stir if required.
3. Select the correct range of pH test strip and dip it into the water sample for approximately 1 minute.
4. Withdraw the strip from the sample and compare the colour obtained with the colour scale on the pH indicator strips container.
5. Record the pH value obtained on the log sheet provided, against the date on which the test was taken.
Spares:
Standard replacement reagents are available from your Unitor Representative. 

REAGENTS RE ORDER

 Product no:

P. Alkalinity tablets                    661 555664

Chloride tablets                         661 555656

pH paper replacement pack(7.5-14 & 5.5-10)    661 555706

LOG SHEET

Boiler water log sheet combined treatment 310       089 808083

 EQUIPMENT:

  250 ml sample bottles       661 555557