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I.S. 821:2006

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by
superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

GAS PRESSURE REGULATING STATIONS FOR DISTRIBUTION
Available format(s)

Hardcopy , PDF

Superseded date

11-21-2017

Language(s)

English

Published date

01-01-2006

Preview

DECLARATION
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 I.S. EN 12186
5 Quality system
6 Layout of the gas pressure regulating station
   6.1 General
   6.2 Proximity requirements
   6.3 Layout of the site
   6.4 Site security
7 Housings
   7.1 General
   7.2 Requirements for housings
   7.3 Underground stations
        7.3.1 General
        7.3.2 Stations in a pit
        7.3.3 Buried vessel type stations
8 Design of the station
   8.1 General
   8.2 Gas pre-heating
   8.3 Filters, separators, scrubbers
   8.4 Noise control
        8.4.1 General
        8.4.2 Environmental acceptance
        8.4.3 Work area noise
   8.5 Apertures and vent lines
        8.5.1 Apertures
        8.5.2 Vent lines
   8.6 Electrical installation
   8.7 Lightning and earthing
   8.8 Cathodic protection and electrical isolation
   8.9 Ancillaries
   8.10 Pipework
   8.11 Welding
   8.12 Instrumentation pipework
   8.13 Stress analysis
        8.13.1 General
        8.13.2 Design pressure
        8.13.3 Design factor
        8.13.4 Supports
        8.13.5 Flexibility
        8.13.6 Temperature
        8.13.7 Gas velocity
   8.14 Isolating valves
        8.14.1 Supports
   8.15 Isolating valves
9 Pressure control
   9.1 General
   9.2 Pressure regulating system
   9.3 Pressure safety system
        9.3.1 General
        9.3.2 Operating principles of pressure safety
               systems
        9.3.3 Applications
   9.4 Non-venting pressure safety devices
        9.4.1 Safety shut-off devices
        9.4.2 Monitors
   9.5 Venting pressure safety devices
        9.5.1 General
        9.5.2 Creep relief valve
   9.6 Pressure warning system
   9.7 Instrumentation
   9.8 Bypasses
        9.8.1 Temporary bypasses for equalization or
               testing
        9.8.2 Bypasses of the pressure control and/or
               safety system
10 Testing
   10.1 General
   10.2 Strength test
        10.2.1 General
        10.2.2 Installations with MOP up to and including
               16 bar
   10.3 Tightness test
   10.4 Reporting
11 Commissioning
12 Operation and maintenance
   12.1 General
   12.2 Data
   12.3 Maintenance
   12.4 Training
   12.5 Work undertaken
   12.6 Firefighting
   12.7 Maintenance review
Annex A (normative) Proving tests
      A.1 Safety
      A.2 General
      A.3 Test equipment
      A.4 Pneumatic tests
      A.5 Hydrostatic tests
      A.6 Test certificates and records
Bibliography

Specifies the minimum requirements applicable to the design, materials, construction, testing, operation and maintenance of gas pressure regulating stations which form part of a gas distribution system.

DocumentType
Standard
Pages
36
PublisherName
National Standards Authority of Ireland
Status
Superseded
SupersededBy

I.S. 822:2007 GAS PRESSURE REGULATING INSTALLATIONS ON SERVICE PIPELINES
S.R. 12007-5:2016 GUIDANCE ON THE APPLICATION OF I.S. EN 12007-5:2014, GAS INFRASTRUCTURE - PIPELINES FOR MAXIMUM OPERATING PRESSURE UP TO AND INCLUDING 16 BAR - PART 5: SERVICE LINES - SPECIFIC FUNCTIONAL REQUIREMENTS

I.S. 329:2015 GAS DISTRIBUTION MAINS (EDITION 3)
IEC 60079-10:2002 Electrical apparatus for explosive gas atmospheres - Part 10: Classification of hazardous areas
I.S. 822:2007 GAS PRESSURE REGULATING INSTALLATIONS ON SERVICE PIPELINES
I.S. EN ISO 9002:1994 QUALITY SYSTEMS - MODEL FOR QUALITY ASSURANCE IN PRODUCTION, INSTALLATION AND SERVICING
I.S. EN ISO 9001:2015 QUALITY MANAGEMENT SYSTEMS - REQUIREMENTS (ISO 9001:2015)
I.S. EN ISO 9000:2015 QUALITY MANAGEMENT SYSTEMS - FUNDAMENTALS AND VOCABULARY (ISO 9000:2015)
I.S. EN 1776:2015 GAS INFRASTRUCTURE - GAS MEASURING SYSTEMS - FUNCTIONAL REQUIREMENTS
IEC 60079-17:2013 Explosive atmospheres - Part 17: Electrical installations inspection and maintenance
I.S. EN 12327:2012 GAS INFRASTRUCTURE - PRESSURE TESTING, COMMISSIONING AND DECOMMISSIONING PROCEDURES - FUNCTIONAL REQUIREMENTS
I.S. EN 1594:2013 GAS INFRASTRUCTURE - PIPELINES FOR MAXIMUM OPERATING PRESSURE OVER 16 BAR - FUNCTIONAL REQUIREMENTS
I.S. EN ISO 9000-1:1994 QUALITY MANAGEMENT AND QUALITY ASSURANCE STANDARDS - PART 1: GUIDELINES FOR SELECTION AND USE
I.S. EN 12732:2013 GAS INFRASTRUCTURE - WELDING STEEL PIPEWORK - FUNCTIONAL REQUIREMENTS
I.S. EN ISO 9003:1994 QUALITY SYSTEMS - MODEL FOR QUALITY ASSURANCE IN FINAL INSPECTION AND TEST
I.S. EN 334:2005 GAS PRESSURE REGULATORS FOR INLET PRESSURES UP TO 100 BAR
I.S. EN 60079-10:2003 ELECTRICAL APPARATUS FOR EXPLOSIVE GAS ATMOSPHERES - CLASSIFICATION OF HAZARDOUS AREAS
I.S. EN 12954:2001 CATHODIC PROTECTION OF BURIED OR IMMERSED METALLIC STRUCTURES - GENERAL PRINCIPLES AND APPLICATION FOR PIPELINES
I.S. EN 10204:2004 METALLIC PRODUCTS - TYPES OF INSPECTION DOCUMENTS
I.S. EN 12279:2000 GAS SUPPLY SYSTEMS - GAS PRESSURE REGULATING INSTALLATIONS ON SERVICE LINES - FUNCTIONAL REQUIREMENTS
I.S. EN 60079-14:2014 EXPLOSIVE ATMOSPHERES - PART 14: ELECTRICAL INSTALLATIONS DESIGN, SELECTION AND ERECTION
IEC 60079-14:2013 Explosive atmospheres - Part 14: Electrical installations design, selection and erection
I.S. EN 12186:2014 GAS INFRASTRUCTURE - GAS PRESSURE REGULATING STATIONS FOR TRANSMISSION AND DISTRIBUTION - FUNCTIONAL REQUIREMENTS
I.S. EN 12007-1:2012 GAS INFRASTRUCTURE - PIPELINES FOR MAXIMUM OPERATING PRESSURE UP TO AND INCLUDING 16 BAR - PART 1: GENERAL FUNCTIONAL REQUIREMENTS
I.S. EN 60079-17:2014 EXPLOSIVE ATMOSPHERES - PART 17: ELECTRICAL INSTALLATIONS INSPECTION AND MAINTENANCE
I.S. EN ISO 9004-1:1994 QUALITY MANAGEMENT AND QUALITY SYSTEM ELEMENTS - PART 1: GUIDELINES
I.S. EN 1775:2007 GAS SUPPLY - GAS PIPEWORK FOR BUILDINGS - MAXIMUM OPERATING PRESSURE LESS THAN OR EQUAL TO 5 BAR - FUNCTIONAL RECOMMENDATIONS

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