Draw 10 mL sample. Agitate or rinse water to observe for soap bubbles. If any soap bubbles are
present, repeat steps (6) and (7) until no bubbles are observed.
Blow dry components with clean air, nitrogen or helium.
Reassemble components using an approved lubricant.
(10) Bag and seal or tape closed all components and ends of pipe or hoses with plastic until ready for
For cleaning pipe or tubing the following procedures should be followed:
Determine the volume of cleaning solution estimating the length of pipe or hose to be cleaned and the
size of the pipe to be cleaned. Look up the appropriate pipe/tube size and then the corresponding
volume (in cubic inches) per one foot length in table 4-3. Multiply that volume by the estimated length
to be cleaned. After the total volume is calculated, multiply the answer in cubic inches by .00433.
After the total volume is calculated, multiply the answer in cubic inches by 00433 to obtain the number
of gallons to fill the system. Determine applicable flow rate from table 4-4 and multiply flow rate by
thirty (30) to compute number of gallons required to pump through the system. Add volume required to
fill system and the volume required to pump through the system for the total volume of cleaning
Table 4-3. TSP Cleaning Solution Volume.
Volume of 1 Foot (30 cm) Length
1/4 (0.6 cm)
0.6 cubic inches (9.7 cm3)
3/8 (1.0 cm)
1.3 cubic inches (21.7 cm3)
1/2 (1.3 cm)
2.4 cubic inches (38.6 cm3)
3/4 (1.9 cm)
5.3 cubic inches (86.9 cm3)
1 (2.5 cm)
9.4 cubic inches (154.5 cm3)
1-1/2 (3.8 cm)
21.2 cubic inches (347.6 cm3)
2 (5.1 cm)
37.7 cubic inches (617.9 cm3)
Prepare a solution at a ratio of 2 pounds (0.9 kg) of TSP, 0.5 ounces (14.7 mL) non-ionic detergent f
each 80 gallons (302.8 L) of distilled or deionized water as determined.
Heat solution to 165 degrees F (74 degrees C) mixing occasionally during the heating.
Pump the cleaning solution through the pipe/tubing for 30 minutes at a rate listed in table 4-4 using the
solution pump, and maintain constant temperature at all times. It may be necessary with some piping
configurations to cap or plug some openings and alternate with others to maintain even flow of