AS 2671:2002 pdf free download.Hydraulic fluid power—General requirements for systems.
4.3 Safety requirements
4.3.1 Design considerations
When designing hydraulic systems, all aspects of possible methods of failure (including control supply failure) shall be considered.
In each case, components shall be selected, applied, fitted and adjusted so that in the event of a failure, safety of personnel shall be the prime consideration.
The prevention of damage to the system and the environment shall be considered.
4.3.2 Component selection
All components in the system shall be selected or specified to provide for safety in use, and they shall operate within their rated limits when the system is put to its intended use. Components shall be selected or specified to operate reliably under all intended uses of the system. Particular attention shall be paid to the reliability of components that could cause a hazard in the event of their failure or malfunction.
4.3.3 Unintended pressures
All parts of the system shall be designed or otherwise protected against pressures exceeding the maximum working pressure of a system or any part of the system or the rated pressure of any specific component.
The preferred means of protection against excessive pressure are one or more pressure relief valves located to limit the pressure in all parts of the system. Alternative means, such as pressure compensator pump controls, may be used, provided those means satisfy the application requirements.
Systems shall be designed, constructed and adjusted to minimise surge pressures and intensified pressures. Surge pressures and intensified pressures shall not cause hazards.
Loss of pressure or critical drop in pressure shall not expose persons to a hazard.
4.3.4 Mechanical movements
Mechanical movements, whether intended or unintended (including effects from, for example, acceleration, deceleration or lifting/holding of masses), shall not result in a situation which is hazardous to persons.
4.3.5 Noise For the design of low noise machinery and systems, see ISO 11688-1. AS 2671 pdf download.