British standard pipe thread

There are different standards depending on where you are.

BSP, which is British Standard Pipe thread, is a fine thread used as an international standard

The term BSP refers to a thread known as British Standard Pipe, there is also BSPT, this is British Standard Pipe Tapered.

They are both the same thread. They are both calling out a British Parallel Pipe thread. Please do not assume that this is the same as the standard North American pipe thread, as it is not close to the same.

No, it's not standard pipe thread.