That field holds a bunch of bits that each denote some piece of information, and they're using the bitwise AND ( & ) with the hex value of "8" to see if that particular bit (the "1" in this 00001000) is set. If it is, that operation will be non-zero.
It's set in:
2392 100101011000
2424 100101111000
35160 1000100101011000
...and so on. No clue what that particular bit denotes in your app, though, but the vendor does. It's typically used for things like configuration settings, where a bunch of options are toggled on or off, etc, but could be just about anything where you have a bunch of different values that you want to store in a single column, and where each value has no more than two states.