INTERNATIONAL STANDARDIZATION PROCESS
The international harmonized stage codes of ISO. They follow this in working standards documents.
INFORMATION SECURITY
A document cited in the ISO 27002, the international standard in the code of practice in information security management is OECD Guidelines for security of information systems and networks: Towards a culture of security. Published in different languages.
Other that is widely known best practice and standard that could be helpful is the Information Security Forum's Standard of Good Practice in Information Security.