CHAPTER 2. OZONE DEPLETING SUBSTANCES

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CHAPTER 2

OZONE DEPLETING SUBSTANCES

Section I. Class I ODSs

2-1. OZONE DEPLETING SUBSTANCES COMMONLY USED WITH COMMUNICATIONS-ELECTRONICS

EQUIPMENTS

The following three ODSs are those generally used for cleaning electronics equipment. Also listed, for informational

purposes , are alternate common names and the military standards which govern them. Existing stocks should be

exchanged for an approved substitute as soon as possible, but may be used until depleted.

a. Carbon Tetrachloride: CC, 0-F-351, 0-F-380, MS36030

b. Trichlororifluoroethane: CFC-113, Freon T, MIL-C-81302, MIL-C-83360

c. Methyl Chloroform, 1,1,1 Trichloroethane: 0-T-620, MIL-T-81533, 0-T-634, ASTM D4126

2-2. SOLVENT SUBSTITUTE HISTORY

a. The Material Substitution Committee, located at Los Alamos National Laboratory as part of the Waste

Minimization Program Office, was formed to gather information on solvent substitutes for machining operations using

ODSs and to identify appropriate non-hazardous solvent substitutes for a variety of uses. The Committee has tried to find

commercially available and easily accessible replacements.

b. Table A-1 lists 21 solvent substitutes that the Committee tried in various applications, the results of those tests,

and the applications for which they can be used. Lower values listed in the Comments/Results column indicate the

amount of residue left on surfaces after the tests were completed.

c. The substitutes should be applicable to many cleaning situations; however, any substitute should be tested for

each specific application by using a small amount first. If the substitute is found to be effective, continue to use it.

2-3. CORROSION REMOVING COMPOUNDS

The information in the following four table was extracted from The Federal Register, 18 March 1994, Part II Protection of

Stratospheric Ozone; Final Rule.

Table 2-1. Corrosion Removing Compounds

2-1