Kindly give simple definition/explanation to the below with some examples with respect to piping design and selection
1. NPS:
2. NB:
3. OD:
4. ID:
5. Standard convention:
6; Specification:
7. Codes:
8. Standards:
9. Class:
10. Schedule:
11. National Pipe Thread Taper NPT:
12. ISA
13 DIN
Thanks
T