1. The mechanical property indicates is satisfied with ISO 2531: 1998. 2. The bitumen coating thickness indicates s satisfied with ISO 2531: 1998 andISO 8179- 1995. 3. cement lining thickness indicates is satisfied with ISO 2531: 1998 and ISO 4179- 1985. 4. zinc coating thickness indicates is satisfied with ISO 2531: 1998 and ISO 8179- 1995. 5. hydrostatic test report indicates is satisfied with ISO 2531: 1998. 6. dimension indicates is satisfied with ISO 2531: 1998. 7. Rubber Rings is satisfied with ISO 4633.