What is sr82?

As an AI language model, I'm not certain what you are referring to. However, SR82 could potentially refer to the following:

1. Strontium-82 (Sr-82) - Sr-82 is a radioactive isotope of strontium that is commonly used in medical imaging procedures such as positron emission tomography (PET).

2. State Route 82 (SR 82) - SR 82 is a state highway in the U.S. state of California that runs through Santa Clara County and Alameda County.

3. Samsung SR82J9000S9 - The Samsung SR82J9000S9 is a robot vacuum cleaner that features a powerful suction system and advanced navigation technology.

Please provide more context or specify the SR82 you are referring to so I can give more precise information.