MIL-STD-801 Inspection And Acceptance Standards For Fuel Cells And FittingsThis standard establishes a test method standard for fuel cells and fuel cell fittings. This standard applies to all fuel cells manufactured in accordance with MIL-DTL-5578, MIL-DTL-6396 except Type I, and MIL-DTL-27422.

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Item

Defects

Defect Classes

Types of Fuel Cells/Location

Fittings

Minor

Major

Critical

Bladder

Cells

Self- sealing Cells

Crash Resistant Cells

Cell

Interior

Cell

Exterior

Installed

Replacement

6

CHANNEL AROUND ENTIRE OUTER EDGE OF FITTING FLANGE

a. In excess of 1/4 inch in width

-

x

-

x

x

-

x

x

x

-

b. In excess of 1/2 inch in width for crash resistant cells

x

-

-

-

-

x

x

x

x

-

7

CHANNEL AROUND ENTIRE THROAT OF FITTING FLANGE

a. Up to 1/4 inch in width

x

-

-

x

x

-

x

x

x

x

b. In excess of 7a.

-

x

-

x

x

-

x

x

x

x

c. In excess of 1/2 inch in width for crash resistant cells

-

x

-

-

-

x

x

x

x

x

8

CHANNEL AT FABRIC COMPONENTS

a. 1/4 inch wide maximum dimension - maximum of 1 in any 1 linear foot.

x

-

-

x

x

x

x

x

-

-

b. In excess of 8a.

-

x

-

x

x

x

x

x

-

-

9

OPEN END CHANNELS IN 3 PLY-INNER OVERLAPS OR TAILORED CORNERS

a. Less than 1/4 inch wide by 3 inches long and less than 1 inch bond maintained between end of channel and barrier (N/A if 1 inch bond is maintained)

x

-

-

x

x

x

x

-

-

-

b. In excess of 1/4 inch wide by 3 inches long and less than 1 inch bond maintained between end of channel and barrier

-

x

-

x

x

x

x

-

-

-

10

FRIED OR SCARRED CONDITION OR THINNING OUT OF GUM LINERS IN BLADDER CELLS

a. Less than 1/2 of specified thickness

x

-

-

x

-

x

x

-

-

-

b. In excess of 1/2 of specified thickness

-

x

-

x

-

x

x

-

-

-

11

FRIED OR SCARRED CONDITION OR THINNING OUT OF GUM INNER LINER IN SELF-SEALING CELLS

a. In excess of 1/2 of specified liner thickness (less than 1/3 - no defect)

-

x

-

-

x

x

x

-

-

-