There are two types of Standards :
a.External Standards.
b.Internal Standards.
External Standards:
These standards are defined by entities other than the organization.
There are three types of External Standards:
1.International Standards:
These standards are globally defines and applicable to all.
2.National Standards:
These standards are defined by regulatory authorities.These standards are applicable to both producer and customers who reside in that specific country.
3.Customer Standards:
These standards are defined by the customers considering their business requirement.
Internal Standards:
These standards are developed by the organization for their internal purpose only.
These standards mainly provides consistency and simplifies communication.