Chemical Composition

EPA APPROVED ALTERNATIVES (ASU STATUS)

NOTE: Approved as of 3 June 97. Subject to fittings, labeling, no drop-in, and compressor shutoff switch use conditions. Although some blends contain hydrocarbons, all blends that have ASU status are nonflammable as blended.

HFC-134a: 100% HFC-134a

FRIGC, FR-12
- 59% HFC-134a
- 39% HCFC-124
- 2% Butane (R-600)

Free Zone, RB-276
- 79% HFC-134a
- 19% HCFC-142b
- 2% Lubricant

Ikon-12: Compostion claimed as confidential business information.

McCool, GHG, R-406a
- 55% HCFC-22 (Content results in an additional use condition, must be used with barrier hoses).
- 41% HCFC-142b
- 4% Isobutane

Autofrost, Chill-It, GHG-X4
- 51% HCFC-22 (Content results in an additional use condition, must be used with barrier hoses).
- 28.5% HCFC-124
- 16.5% HCFC-142b
- 4% Isobutane

Hot Shot, Kar Kool
- 50% HCFC-22 (Content results in an additional use condition, must be used with barrier hoses).
- 39% HCFC-124
- 9.5% HCFC-142b
- 1.5% Isobutane

GHG-HP
- 65% HCFC-22 (Content results in an additional use condition, must be used with barrier hoses).
- 31% HCFC 142b
- 4% Isobutane

FREEZE 12
- 80% HFC-134a
- 20% HCFC-142b

GHG-X5
- 41% HCFC-22 (Content results in an additional use condition, must be used with barrier hoses).
- 40% HFC-227ea
- 15% HCFC-142b
- 4% Isobutane

NON-APPROVED ALTERNATIVES (UNA STATUS)

NOTE: UNA status implies the alternative blend is unacceptable and illegal for use as a R-12 substitute in motor vehicle air conditioners.

OZ-12, HC-12a, Duracool 12a: Flammable blend of hydrocarbons, insufficient data to demonstrate safety.

R-176: Contains R-12, which is inappropriate as a R-12 substitute.

R-405a: Contains Perfluorocarbon component (extremely high global warming potential).

NOTE: Additional information concerning the Environmental Protection Agencies (EPA) policies on "Drop-in" refrigerants may be found on the Internet at http://www.epa.gov/ozone/ or call the EPA's Stratospheric Ozone Protection Hotline, at 800-296-1996.