Suvaâ¢ 409A refrigerant. Suvaâ¢ 409A, an HCFC-based refrigerant, is a cost-effective retrofit refrigerant for R-12 stationary positive displacement air-conditioning and refrigeration systems such as walk-in coolers, beverage dispensers, vending machines, and supermarket systems.No oil change is needed in many unitary and close-coupled systems.uvaâ¢ 409A refrigerant. Suvaâ¢ 409A, an HCFC-based refrigerant, is a cost-effective retrofit refrigerant for R-12 stationary positive displacement air-conditioning and refrigeration systems such as walk-in coolers, beverage dispensers, vending machines, and supermarket systems.
Photograph via Wikipedia. Thatâs Jeanne Calment, a French citizen who has the longest confirmed human lifespan in history at 122 years and 164 days. She was born on February 21, 1875 and passed on August 4, 1997 [Source]. Sheâs lived through both world wars, seen humankind land on the moon and witnessed the birth of the Internet. So it may come as a surprise to some to learn that there are animals that have lived far longer than Jeanne and thus, any confirmed human being for that matter. Here are ten interesting animals that have lived longer than any human on our planet.
A theoretical study suggested the maximum human lifespan to be around 125 years using a modified stretched exponential function for human survival curves. In another study, researchers claimed that there exists a maximum lifespan for humans, and that the human maximal lifespan has been declining since the 1990s.