MIL-DTL-11751G
3. REQUIREMENTS
3.1 First article. When specified (see 6.2), a sample shall be subjected to first article
inspection in accordance with 4.3.
3.2 Toxic chemicals, hazardous substances, and ozone depleting substances (ODS). The
use of toxic chemicals, hazardous substances, or ODS shall be avoided, whenever feasible.
3.3 Recycled, recovered, or environmentally preferable materials. Recycled, recovered,
or environmentally preferable materials should be used to the maximum extent possible provided
that the material meets or exceeds the operational and maintenance requirements, and promotes
economically advantageous life cycle costs.
3.4 Appearance. Potassium hydroxide solution shall be colorless to pale yellow when
tested as specified in 4.5.2.
3.5 Physical and chemical characteristics.
3.5.1 Class 1. Class 1 potassium hydroxide solution shall conform to the chemical
characteristics in table I when tested as specified herein.
TABLE I. Class 1 characteristics.
Characteristic
Test paragraph
Percent by weight
Minimum Maximum
Potassium hydroxide
32.0
36.0
4.5.3
Potassium carbonate
-
3.0
4.5.3
3.5.2 Class 2. Class 2 potassium hydroxide solution shall conform to the chemical
characteristics in table II when tested as specified herein.
TABLE II. Class 2 characteristics.
Characteristic
Minimum
Maximum
Test paragraph
Potassium hydroxide, percent by weight
45.0
50.0
4.5.3
Potassium carbonate, percent by weight
-
3.0
4.5.3
Specific gravity at 15/4°C
1.455
1.515
4.5.4
3.5.3 Class 3. Class 3 potassium hydroxide solution shall conform to the chemical
characteristics in table III when tested as specified herein.
3
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