MIL-DTL-11751G
TABLE III. Class 3 characteristics.
Characteristic
Minimum
Maximum
Test paragraph
29.5
Potassium hydroxide, percent by weight
30.5
4.5.3
Potassium carbonate, percent by weight
-
0.90
4.5.3
-
Chloride
to pass test
4.5.5
Nitrogen compounds (as N)
-
to pass test
4.5.6
-
Phosphate
to pass test
4.5.7.3
Sulfate
-
to pass test
4.5.8
Ammonium hydroxide precipitate, percent
-
0.01
4.5.9
by weight
Heavy metals (as Ag)
-
to pass test
4.5.10
-
Iron
to pass test
4.5.11
Sodium
-
to pass test
4.5.12.4
Foam
-
to pass test
4.5.13
-
Particulate
to pass test
4.5.14
Filterable non-volatile residue (mg/L) 1
-
50.0
4.5.15.3
1
Milligrams per liter (mg/L).
3.5.4 Class 4. Class 4 potassium hydroxide solution shall conform to the chemical
characteristics in table IV when tested as specified herein.
TABLE IV. Class 4 characteristics.
Characteristic
Minimum
Maximum
Test paragraph
Potassium hydroxide, percent by weight
39.5
40.5
4.5.3
Potassium carbonate, percent by weight
-
0.90
4.5.3
Chloride
-
to pass test
4.5.5
Nitrogen compounds (as N)
-
to pass test
4.5.6
Phosphate
-
to pass test
4.5.7.3
Sulfate
-
to pass test
4.5.8
Ammonium hydroxide precipitate, percent
-
0.01
4.5.9
by weight
Heavy metals (as Ag)
-
to pass test
4.5.10
Iron
-
to pass test
4.5.11
Sodium
-
to pass test
4.5.12.4
Foam
-
to pass test
4.5.13
Particulate
-
to pass test
4.5.14
Filterable non-volatile residue (mg/L)
-
50.0
4.5.15.3
4. VERIFICATION
4.1 Classification of inspections. The inspection requirements specified herein are
classified as follows:
a. First article inspection (see 4.3).
b. Conformance inspection (see 4.4).
4
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