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  • BSI
    BS EN 61285:2015 Industrial-process control. Safety of analyzer houses
    Edition: 2015
    $411.69
    / user per year

Description of BS EN 61285:2015 2015

This International Standard describes the physical requirements for the safe operation of the process analyser measuring system installed in an analyser house (AH) in order to ensure its protection against fire, explosion and health hazards. This standard applies for analyser houses with inner and/or external potential explosive atmospheres and it applies to hazards caused by toxic substances or asphyxiant gases. (Refer to national guidelines on toxic hazards.)

This standard does not address facilities where solids (dust, powder, fibres) are the hazard.

This standard does not seek to address all functional safety issues related to analyser houses.

Clause 4 addresses the location of the AH and connection within the process plant areas.

Clause 5 addresses the design, construction and layout of the AH. It does not address parts of the analyser measuring system installed in other locations such as sample conditioning rooms (SCR) or switchgear rooms.

Clause 6 addresses measures for reducing the danger of explosion for AHs while permitting maintenance of equipment with the power on and the case open.

For most fluids, the major constraint is that the concentration of vapours, which are toxic for personnel, is lower than the lower explosive (flammable) limit (LEL) (see Clause 7).

Using n-Pentane as an example, the LEL is 1,4 % or 14 000 × 10 –6, the level immediately dangerous to life or health (which is the maximum level from which a worker could escape within 30 min without any escape-impairing symptoms or any irreversible health effects) is only 0,5 % or 5 000 × 10 –6.

Clause 7 addresses those measures for protecting personnel from materials in the atmosphere of AHs that are hazardous to health.



Standard NumberBS EN 61285:2015
TitleIndustrial-process control. Safety of analyzer houses
StatusDefinitive
Publication Date2015-04-30
ReplacesBS EN 61285:2004
Identical National Standard OfEN 61285:2015, IEC 61285:2015
DescriptorsChemical analysis and testing, Safety, Safety measures, Instrumental methods of analysis, Automatic control systems, Safety engineering, Marking, Hazards, Explosive atmospheres, Design, Fire safety in buildings, Leakage paths, Process control, Health and safety requirements, Hazard prevention in buildings
ICS13.110 Safety of machinery, 25.040.40 Industrial process measurement and control
CommitteeGEL/65/2
ISBN978 0 580 80698 8
PublisherBSI
Pages30

The following editions for this book are also available...

Format Year Publisher Type Title Annual Price
2020
BSI
Standards
 $466.58 Buy

About BSI

BSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses.
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