spectrapak 315

8/10/2019 Spectrapak 315

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Unitor's Combined Boiler Water Treatment Programme

SPECTRAPAK 315 Product no: 661 698738

The tests recommended to maintain boiler water within the desired level of quality when treating with UnitorAutotreat or Combitreat in conjunction with Oxygen Scavenger Plus or Oxygen Control are as follows:

A. P-alkalinity - Recommended Limits: 100 -300 ppm as

CaCO3B. Chlorides - 200 ppm maximum as Cl-.C. Condensate pH - 8.3-9.0

D. Hotwell temperature >80C

Dosage level of Autotreat/combitreat is based on the P-

alkalinity value of the boiler water. However, chlorides

and condensate pH must also be controlled andmaintained as recommended. Knowledge of all relevantparameters is desirable to enable better interpretationand correct application of treatment. To increase the

condensate pH, use Unitor's Condensate Control inconjunction with Combitreat. It is recommended to doseCondensate Control on a continuous basis, to maintain

the condensate pH within the recommended range of8.3-9.0 at all times.

Controlling AlkalinityThe alkalinity is a more accurate indicator of the boilerwater condition than pH when water quality is monitored

manually. The phenolphthalein (P) Alkalinity is measuredto determine whether the correct conditions of alkalinityexist in the boiler.

SPECTRAPAK 315

Controlling ChloridesThe 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 referencepoint 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 togive a better overall understanding of the boiler water quality.

pH-CondensateTo control corrosion in a boiler, condensate and feed water section, the condensate pH should be kept between 8.3and 9.0. Monitoring the pH of this water is very important in maintaining a complete Boiler Water TreatmentProgramme.


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TEST RESULTS - COMBINED TREATMENT

A.Recording - When using Unitor's Boiler Water Management all measurements are taken automatically. Whenmanually dosing, follow the following routine.

1. Log form - Combined Boiler Water Treatment Log.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, atthe 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 owner3. Lilac copy - to be kept onboard

C. Evaluation

1. Logs will be reviewed at the Unitor Rapid Response Centre for adherence to recommended specifications, byUnitor'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 315Low Pressure Boiler Water Test KitBoiler Water Treatment Test Kit P. ALKALINITY, CHLORIDE & pH

Product no: 661 698738

P ALKALINITY TEST1. 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 present3. 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.B. 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 givesteps of 1O ppm per tablet used.


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Water Test Kit Selector

Application Product RocorNB

Liquid

DieselguardNB

Combitreat Liquitreat Autotreat CondensateControl

OxygenControl

OxygenScavenger

Plus

Cat.Sulphite

AlkalinityControl

HardnessControl

Enginecooling water

Rocor NBLiquid

309

Enginecooling water

DieselguardNB

309

Combinedboiler watertreatments

Combitreat 310 310 315/312 315/313 310/sulphite


Liquitreat 310 310


Autotreat 310 315/312 315/313

Singleapplicationboilertreatments

CondensateControl

310 310 311 311

Singleapplication

boilertreatments

Oxygen

Control315/312 315/312 311/312 311/312


OxygenScavengerPlus

315/313 315/313 311/313 311/313


Cat.Sulphite

310/sulphite 311/sulphite 311/sulphite


AlkalinityControl

311 311/312 311/313 311/sulphite 311


HardnessControl

311 311/312 311/313 311/sulphite 311 311

Can be used alone.Should always be used in combination with other product(s).

The numbers represent the suitable Spectrapak test kit. In cells with two numbers, the number to the right is anextention kit.Sulphite represents the sulphite mini testkit.

More information about individual products and test kits is available in the Technical Product Data sheets.

spectrapak 315

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