ISO 9001 Certification standards is known as Quality Management System.
OHSAS 18001 Certification is an Occupational Health and Safety Management System (where the OHSAS stands for Occupational Health and Assessment series)
ISO 27001 Standard is an Information Security Management System. The main objective of this standard is the organization shall establish, implement and maintain the information security system within the organization.
The ISO 14001 Certification is an Environmental Management System (EMS) Standards – This standard provided the requirement of EMS and guideline for use.
ISO 22000 Standard is a Food safety management system specifies the requirements for an organization in food chain to demonstrate its ability to control food safety hazards in order to ensure that food is safe at the time of human consumption.