Power systems management and associated information exchange. Data and communications security - Role-based access control1 Scope This technical specification covers the access control of users and automated agents in the following subjects to data objects in power systems by means of role based access control (RBAC). RBAC is not a new concept used by many operating systems to control access to system resources. RBAC is an alternative to the all or nothing super user model. RBAC is in keeping with the security principle of least privilege, which states that no subject

based on the intended use and duration of contact defined in BS EN ISO 10993-1

BS 4434 gives explanatory notes on refrigerant compressor lubricants and is for information only

7 % (m/m) in unleaded petrol having a final boiling point not greater than 220 °C

What is BS EN ISO/IEC 17025:2005

NOTE 1: These British Standards specify requirements for two categories of cable type

This British Standard supersedes BS 7668:1994

resistance to fluids

The normative references not in use are removed

The specific electoral content has been placed under the clauses of the new structure

Evaluating the test results

General and specialized engineering consultants

Aircraft and space vehicle manufacturers