UFC 3-240-13FN
25 May 2005
caustic, the boiler water sample size is a 0.12-liter (4-ounce) plastic bottle,
although a 1-liter plastic bottle may be used.
For hot water boilers, the boiler water sample size is a 1-liter plastic bottle,
or as required by the contract laboratory.
Boiler water sample shipping containers and bottles used for submitting
boiler water check samples can be obtained by request to the contract
laboratory. Shipping containers for high-pressure boiler water samples are
designed for shipping a 1-liter plastic bottle. Shipping containers for water
samples from low-pressure boilers treated with caustic soda are designed
for shipping a 0.12-liter plastic bottle. Pack the bottle carefully so it will not
leak during shipping. A completed information data sheet must be
enclosed in each sample shipping container shipped to the laboratory.
6-4
WATER SAMPLING AND TESTING FOR CLOSED HOT AND CHILLED
systems is summarized in Table 6-3, with additional information provided below.
Table 6-3. Water Sampling and Testing Requirements
for Closed Hot and Chilled Circulating Water Systems
Total
Total
pH
Nitrite
System
Sulfite
Molybdate
Alkalinity
HTW with caustic-sulfite
1/day
1/day
--
--
--
--
treatment
Closed MTW & LTW hot
water w/nitrite-borax
1/mo
--
1/mo
--
--
--
treatment
Closed MTW & LTW hot
water w/molybdate
1/mo
--
--
1/mo
--
--
treatment
Chilled water & brine;
1/mo
--
--
1/mo
--
--
w/molybdate treatment
Chilled water & brine
1/mo
--
1/mo
--
--
--
w/nitrite-borax treatment
Diesel jackets
1/mo
--
--
1/mo
--
--
w/molybdate treatment
Diesel jackets nitrite-
1/mo
--
1/mo
--
--
--
borax
Ion exchange feedwater
--
--
--
--
1/week
--
Ion exchange outlet
--
--
--
--
3x/day
--
Dealkalizer feedwater
--
--
--
--
--
1/week
Dealkalizer outlet
--
--
--
--
--
3x/day
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