Alternate Leak Test.

TO 14P3-5-61

TM 10-8475-202-13

e. All leaks, including thin areas of the coat ing

4-23.

Inflation test of the hood will be as follows:

detected during inflation shall be returned for repair.

a. Inflate the hood to a pressure of 2 to 4 inches(water

NOTE

column) with oil free and water free air.

For determining pressure in coveralls, manometer or

magnehelic gage, FSN 6685-526-8629 or FSN 6685-

b. The oil-free and water-free air shall be introduced

087-6331 may be utilized.

into the hood through the oral inflation valve and tube.

4-21A. Alternate Leak Test.

Following procedures

c. The air supply shall be securely shut off. Immerse

outlined in paragraphs 4-21a, b, and c, introduce and

a portion of hood in water and check for leaks. Continue

maintain a minimum of 1/8 PSI pressure inside the

procedure until entire hood has been checked for leaks,

coverall. Apply a soap and water solution to the seams

or use a soap and water solution to detect leaks.

and cemented areas and observe for bubbles which are

evidence of leakage.

d. The air will be discharged through the oral inflation

4-22. After inflation test the cove rall shall be

assembly upon completion of test.

thoroughly dried, dusted lightly with talc, and folded and

positioned in carrying case (refer to Figures 3-1 and 3-

Change 20 4-9/(4-10 blank)