14 Sep :Alternative ozone-friendly products are now manufactured widely in all the industrialized countries under both well-known and other brand names. Many developing countries such as India, China, Brazil, etc have begun to manufacture ozone friendly products. The suppliers and traders are now well aware of the distinction between CFC products and ozone friendly products.Many of these products have labels indicating that they are ozone-friendly. Even if they do not have such labels, verification of the contents, normally detailed on the product itself or in the brochure attached to the product, will show whether it contains CFCs or ozone-friendly alternatives. Given below are the current alternatives to CFCs in products of each sector.
1. Refrigeration Sector
(a) New refrigeration units
The alternatives are HFC134a, Hydrocarbons, HFC blends, HCFC blends, HCFC 22, Ammonia.
(b) Air-cooled air conditioning units
HFC 134a, HFC blends
(c) Chiller equipment
HFCs, HCFC and HFC blends.
(d) Mobile Air Conditioners
HCFC blends, HFC-134a.
2. Foam Sector
For foams, zero ODP alternatives include carbon dioxide, hydrocarbons, HFC-152a or HFC-134a. In some markets, HCFCs are used for rigid thermal insulating foams.
The alternatives include hydrocarbons such as propane, butane and iso-butane, HCFCs, HFCs, Dimethyl, Ether and perfluorolethers. Other ozone friendly, CFC-free products are manual pump sprayers and dry powder inhalers.
The zero ODP alternatives include 100% ethylene oxide, ethylene oxide/carbon-dioxide mixtures, sterilization and formaldehyde. Some sterilants use HCFCs .
5. Carbon tetrachloride as solvent
Carbon tetrachloride has been used as solvent in developing countries.