continue:
6 Must have continuous, stable and enough income in the country.
7 No have criminal record.
8 Must honesty and trustworthy.Not have bad faith record in the country.
9 Not have mild unlawful acts in recent.
10 Not have serious civil law case in recent.
If the resident status have fulfilled all of above the 10 items,can participate the citizenship test.
Old permanent residents can be reduced the standard of how to join nationality in most of developed countries:
1 A permanent residents over 55 years old (Or maybe over ? years old.)
2 Have over 10 years paid tax grade point in the country
3 Have permanent resident status (include temporary resident status in previous) enough 4 years, and has lived in the country accumulative enough 3 years