Functional safety of electrical/ electronic/ programmable electronic safety-related systems - Software requirementsBS EN 61508 3: 2002: is intended to be utilised only after a thorough understanding of IEC 61508 1 andIEC 61508 2 applies to any software forming part of a safety related system or used to develop a safetyrelated system within the scope of IEC 61508 1 and IEC 61508 2. Such software is termed safety related software Safety related software includes operating systems, system software, software in communication networks, human computer interface

Risk assessment authorities

It uses the four-figure numerical and the alternative chemical symbol based alloy designation systems specified respectively in BS EN 573-1 and BS EN 573-2

• Individual receiving networks

Section eleven covers safety precautions

It is applicable to both internal and external walls

Contents of BS EN 15016-3:

Requirements are included for applying a hydrostatic test at different pressures to separate zones within a pump which are subject to different allowable maximum working pressures

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An informative annex contains a non-exhaustive list of test organisms for which this standard can be applied

IEC 60926: 1995

This standard does not apply to taximeters being remotely controlled by external intelligence as far as it concerns the functions described in this standard

In vitro diagnostic medical devices manufacturers