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MIL-DTL-15606 Bricks, Refractory, And Burner Tile, Naval Boiler Furnace Lining QualityThis specification covers refractory brick and burner tile and lining for Naval boiler furnaces.

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MIL-DTL-15606J

TABLE II. Sampling for first article and conformance inspection.

Inspection

Test paragraph

Inspection level

Workmanship

4.5.3

S-1

Dimension

Standard shape brick

4.5.4.1

S-3

Special shape brick

4.5.4.2

S-3

Burner tile

4.5.4.3

Warpage

Standard brick

Special shape brick

Burner tile

Chemical analysis

Pyrometric cone equivalent

4.6.2

Permanent volume change

4.6.3

Modulus of rupture

4.6.4

Stability

4.6.5

Permanent linear change

4.6.6

NOTE:

Sample size and accept or reject criteria as specified in test

paragraph and contract.

4.3 First article inspection. First article inspection shall include the examinations of 4.5 and the tests of 4.6, as

specified in table III (see 3.1 and 6.2).

TABLE III. First article inspection.

Test

Test paragraph

Requirement paragraph

Visual Examination

4.5.3

3.3 to 3.6 and 3.11

Chemical analysis

4.6.1

3.8.1 or 3.10

Pyrometric cone equivalent

4.6.2

3.8.2

or 3.9.1

Permanent volume change

4.6.3

3.8.3 or 3.9.2

Modulus of rupture

4.6.4

3.7.2 or 3.8.4 or 3.9.3

Stability

4.6.5

3.7.2

Permanent linear change

4.6.6

3.10.1

NOTE:

The PCE test for Grade A brick (or tile) is required for the initial first article

test in accordance with 3.8.