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I.S. EN 50402:2017

Current
Current

The latest, up-to-date edition.

ELECTRICAL APPARATUS FOR THE DETECTION AND MEASUREMENT OF COMBUSTIBLE OR TOXIC GASES OR VAPOURS OR OF OXYGEN - REQUIREMENTS ON THE FUNCTIONAL SAFETY OF FIXED GAS DETECTION SYSTEMS
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

01-01-2017

Preview

For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.

Only cited Standards give presumption of conformance to New Approach Directives/Regulations.

National Foreword
European foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 General requirements
5 Functional modules and elements - Characterization
   and requirements
6 Software
7 Combining Functional Modules to Safety Functions
8 Determination of hardware failure rates for
   each safety function
9 Gas detection as part of an overall
   safety function
10 Information requirements
11 Validation
12 Functional safety management
13 Functional safety assessment
14 Documentation
Annex A (normative) - Transformation of the
        SIL-capabilities of gas detection systems
Annex B (normative) - Transformation from
        generic standard requirements to modules
Annex C (informative) - Determination of
        SIL-capability of a safety function of the
        gas detection system
Annex D (informative) - Failure modes for
        specific measuring principles

Pertains to detection and measurement apparatus and systems for flammable or toxic gases or vapours or oxygen.

DocumentType
Standard
Pages
104
PublisherName
National Standards Authority of Ireland
Status
Current

Standards Relationship
NEN EN 50402 : 2017 Identical
NBN EN 50402 : 2006 AMD 1 2009 Identical
EN 50402:2017 Identical
NF EN 50402 : 2017 Identical
BS EN 50402:2017 Identical
UNE-EN 50402:2006 Identical
DIN EN 50402 : 2018 Identical

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