{"id":402318,"date":"2024-10-20T05:00:37","date_gmt":"2024-10-20T05:00:37","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bsi-pd-cen-tr-177972022\/"},"modified":"2024-10-26T08:54:07","modified_gmt":"2024-10-26T08:54:07","slug":"bsi-pd-cen-tr-177972022","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bsi-pd-cen-tr-177972022\/","title":{"rendered":"BSI PD CEN\/TR 17797:2022"},"content":{"rendered":"

This document is written in preparation of future standardization and provides guidance on the impact of the injection of H2 into the gas infrastructure from the input of gas into the on\u00adshore transmission network up to the inlet connection of gas appliances.  Furthermore, it identifies the expected revision need of the existing CEN\/TC 243 standards as well as the need of further new standardisation deliverables.  It examines the effects on each part of the gas infrastructure in the scope of the CEN\/TC 234 Working Groups 1 to 12 inclusive, based on available studies, reports and research. Due to several limitations at different hydrogen concentrations, the impacts are specified.  For some specific impact, pre\u00adstandardization research is needed.  By convention, for this technical report, the injection of pure hydrogen, i. e. without trace components is considered.  The information from this report is intended to define the CEN\/TC 234 work program for the coverage of H2NG in relation to the scope of the CEN\/TC 234 and its WGs.  NOTE Progress on hydrogen will develop over time. In principle this will be reflected in the standardisation process in CEN\/TC 234.<\/p>\n

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PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
2<\/td>\nundefined <\/td>\n<\/tr>\n
9<\/td>\n1 Scope
2 Normative references
3 Terms, definitions and abbreviations
3.1 Terms and definitions <\/td>\n<\/tr>\n
12<\/td>\n3.2 Symbols and abbreviations
4 Executive summary <\/td>\n<\/tr>\n
14<\/td>\n5 General considerations for the entire gas infrastructure
5.1 Explosion protection and prevention
5.1.1 General principles <\/td>\n<\/tr>\n
15<\/td>\n5.1.2 Safety characteristics of natural gas-hydrogen mixtures and their impact on explosion prevention
5.1.2.1 General
5.1.2.2 Prevention of the formation of explosive atmospheres <\/td>\n<\/tr>\n
16<\/td>\n5.1.2.3 Avoidance of the ignition of explosive atmospheres
5.1.3 Consequences of H2 and H2NG in NG infrastructure for explosion protection related to identified H2 concentrations
5.1.3.1 Hydrogen content up to 10 Vol.% <\/td>\n<\/tr>\n
17<\/td>\n5.1.3.2 Hydrogen content above 10 Vol.% up to full replacement of natural gas by hydrogen (100 % hydrogen)
5.2 N2NG mixtures in contact with materials \u2014 Pressure integrity, gas tightness and functionality
5.2.1 General
5.2.1.1 Hydrogen tolerance of pipeline materials <\/td>\n<\/tr>\n
19<\/td>\n5.2.1.2 Hydrogen tolerance of fitting materials <\/td>\n<\/tr>\n
20<\/td>\n5.2.2 Steel
5.2.2.1 General <\/td>\n<\/tr>\n
21<\/td>\n5.2.2.2 Mechanical behaviour <\/td>\n<\/tr>\n
26<\/td>\n5.2.2.3 Welding of steel <\/td>\n<\/tr>\n
28<\/td>\n5.2.3 PE and PAU
5.2.4 Alloys
5.2.5 Information on deterioration and chemical aggression of elastomers
5.2.6 Others
5.3 Volume in relation to energy content \u2014 consequences for the capacity and function of the gas transportation, underground gas storage and distribution system <\/td>\n<\/tr>\n
29<\/td>\n6 Technical considerations per topic applicable for the different parts of the gas infrastructure (along chain)
6.1 General
6.2 Gas quality
6.2.1 Scope of considerations \u2014 Gas quality \u2014 EN 16726 <\/td>\n<\/tr>\n
30<\/td>\n6.2.2 Technical considerations \u2014 Identified H2NG
6.2.2.1 Relative density <\/td>\n<\/tr>\n
32<\/td>\n6.2.2.2 Water dew point <\/td>\n<\/tr>\n
33<\/td>\n6.2.2.3 Hydrocarbon dew point <\/td>\n<\/tr>\n
34<\/td>\n6.2.2.4 Methane number <\/td>\n<\/tr>\n
35<\/td>\n6.3 Gas compression
6.3.1 Scope of consideration \u2014 Gas compression <\/td>\n<\/tr>\n
36<\/td>\n6.3.2 Technical considerations \u2014 Identified H2NG aspects \u2014 Gas compression
6.4 Gas pipelines with MOP over 16 bar \u2014 Gas transmission
6.4.1 Scope of consideration \u2014 Gas transmission \u2014 EN 1594
6.4.2 Hydrogen piping and pipelines \u2014 ASME B31.12
6.4.2.1 General <\/td>\n<\/tr>\n
37<\/td>\n6.4.2.2 Fracture mechanics of hydrogen transporting pipelines
6.4.2.3 Requalifying existing pipelines for hydrogen service
6.4.3 Technical considerations \u2014 Identified H2NG aspect \u2014 Gas transmission
6.4.3.1 Hydrogen-enhanced fatigue of pipelines <\/td>\n<\/tr>\n
39<\/td>\n6.4.3.2 Approach for fit for purpose of existing natural gas pipelines with respect to hydrogen <\/td>\n<\/tr>\n
40<\/td>\n6.5 Gas pressure control
6.5.1 Scope of consideration \u2014 Gas pressure control \u2014 EN 12186 and EN 12279 <\/td>\n<\/tr>\n
41<\/td>\n6.6 Gas metering
6.6.1 Scope of consideration \u2014 Gas metering \u2014 EN 1776
6.6.2 Technical considerations \u2014 Identified H2NG aspects \u2014 Gas metering <\/td>\n<\/tr>\n
42<\/td>\n6.7 Gas supply systems up to and including 16 bar and pressure testing
6.7.1 Statement for gas pipelines with MOP up to and including 16 bar for all concentrations <\/td>\n<\/tr>\n
43<\/td>\n6.7.2 Requalifying existing pipelines for hydrogen service
6.7.3 Technical consideration \u2014 Scoping considerations \u2014 EN 12007-1 to -4, CEN\/TS 12007-6, EN 12327 and EN 12732
6.7.3.1 General <\/td>\n<\/tr>\n
44<\/td>\n6.7.3.2 EN 12007-1:2012: General Functional Requirements for gas infrastructure up to and including 16 bar
6.7.3.3 EN 12007-2 (Polyethylene Pipe) and CEN\/TS 120076 (Unplasticized Polyamide Pipe) <\/td>\n<\/tr>\n
45<\/td>\n6.7.3.4 EN 12007-3:2013 Steel pipe infrastructure
6.7.3.5 EN 12007-4 \u2013 Renovation <\/td>\n<\/tr>\n
46<\/td>\n6.7.3.6 EN 12327:2012 \u2014 Pressure testing, purging, commissioning and decommissioning <\/td>\n<\/tr>\n
47<\/td>\n6.7.3.7 Welding on steel pipes from as distribution perspective
6.8 Service lines
6.8.1 Scoping considerations \u2014 Service lines \u2014 EN 12007-5 <\/td>\n<\/tr>\n
48<\/td>\n6.8.2 Technical considerations \u2014 Identified H2NG aspects integrity and safety, reliability and operation
6.8.2.1 Design
6.8.2.2 Materials and components
6.8.2.3 Regulators and meters <\/td>\n<\/tr>\n
49<\/td>\n6.8.2.4 Pipe sizing
6.8.2.5 Identification
6.8.2.6 Measurement equipment
6.9 Industrial piping
6.9.1 Scope of consideration \u2013 Industrial piping \u2013 EN 15001-1 and EN 15001-2 <\/td>\n<\/tr>\n
50<\/td>\n6.9.2 Technical considerations \u2014 Industrial piping
6.9.2.1 Industrial piping \u2014 Materials \u2014 General remarks
6.9.2.2 Industrial piping \u2014 Requirements for gas\/hydrogen mixtures- considerations to maximum hydrogen content <\/td>\n<\/tr>\n
51<\/td>\n6.10 Gas pipework for buildings
6.10.1 Scope of consideration \u2014 Gas pipework for buildings \u2013 EN 1775
6.10.2 Technical considerations \u2014 Gas pipework for buildings
6.11 Underground gas storage
6.11.1 Scope of consideration for underground gas storage \u2014 Generals EN 1918-1 to -5 <\/td>\n<\/tr>\n
52<\/td>\n6.11.2 Technical considerations \u2014 Underground gas storage
6.11.2.1 Pore storage and caverns
6.11.2.2 Wells
6.11.2.3 Gas piping <\/td>\n<\/tr>\n
53<\/td>\n6.11.2.4 Compression units
6.11.2.5 Dehydration units
6.11.2.6 Desulfurization units
6.11.2.7 Metering
6.11.2.8 Other plant components
6.11.3 Identified H2NG impacts \u2014 Underground gas storage <\/td>\n<\/tr>\n
54<\/td>\n6.12 Safety management and integrity management
6.12.1 Scope of considerations
6.12.2 Safety management system \u2014 Management of change
6.12.2.1 General
6.12.2.2 Awareness <\/td>\n<\/tr>\n
55<\/td>\n6.12.2.3 Competence
6.12.2.4 Identification
6.12.2.5 Safety procedures
6.12.2.6 Emergency response
6.12.2.7 Connecting systems
6.12.3 Pipeline integrity management system
6.12.3.1 Safety aspects <\/td>\n<\/tr>\n
56<\/td>\n6.12.3.2 Integrity assessment
6.12.3.3 The integrity condition of the pipeline
6.12.3.4 Leak detection surveys
6.12.3.5 Monitoring
7 Conclusions \u2014 H2 suitability of components, materials and procedures used in the gas infrastructure related to identified H2 concentrations
7.1 General <\/td>\n<\/tr>\n
57<\/td>\n7.2 H2 suitability \u2014Gas quality
7.2.1 H-gas quality \u2013 Admixture of H2 <\/td>\n<\/tr>\n
58<\/td>\n7.2.2 Hydrogen quality in converted natural gas grids <\/td>\n<\/tr>\n
59<\/td>\n7.3 H2 suitability \u2014 Gas compressor stations
7.3.1 General <\/td>\n<\/tr>\n
60<\/td>\n7.3.2 Less than 1 % hydrogen in natural gas
7.3.3 Over 1 Vol.-% up to 5 Vol.-% H2 in natural gas <\/td>\n<\/tr>\n
63<\/td>\n7.4 H2 suitability \u2014 Gas transmission pipelines with MOP over 16 bar <\/td>\n<\/tr>\n
64<\/td>\n7.5 H2 suitability \u2014 Gas pressure control
7.5.1 Introduction <\/td>\n<\/tr>\n
65<\/td>\n7.5.2 General
7.5.3 Up to 10 Vol.% H2 in natural gas <\/td>\n<\/tr>\n
66<\/td>\n7.5.4 Over 10 Vol.-% up to 100 % H2 in natural gas <\/td>\n<\/tr>\n
67<\/td>\n7.6 H2 suitability \u2014 Gas metering
7.7 H2 suitability \u2014 Gas pipelines with MOP up to and including 16 bar
7.7.1 A Summary of findings for gas pipeline systems up to and including 16 bar and pressure testing (CEN\/TC 234 WG 2) <\/td>\n<\/tr>\n
68<\/td>\n7.8 H2 suitability \u2014 Service lines
7.9 H2 suitability \u2014 Industrial piping <\/td>\n<\/tr>\n
69<\/td>\n7.10 H2 suitability \u2014 Gas pipework for buildings
7.11 H2 suitability \u2014 Underground gas storage
7.11.1 General
7.11.2 Between 0 % and 1 % hydrogen in natural gas <\/td>\n<\/tr>\n
70<\/td>\n7.11.3 Between 1 % and 20 % hydrogen in natural gas
7.11.4 Above 20 % hydrogen up to full replacement of natural gas by hydrogen (100 % hydrogen)
8 Revision needs of existing CEN\/TC 234 standards and additional deliverables for the H2-readiness of the gas infrastructure
8.1 Action need <\/td>\n<\/tr>\n
71<\/td>\n8.2 Gas quality \u2014 Expected revision of EN 16726:2015+A1:2018
8.3 Gas compression \u2014 Expected revision of EN 12583:2014 <\/td>\n<\/tr>\n
72<\/td>\n8.4 Pipelines for maximum operating pressure over 16 bar \u2014 Expected revisions of EN 1594:2013 <\/td>\n<\/tr>\n
73<\/td>\n8.5 Gas pressure control \u2014 Expected revisions of EN 12186:2014 and EN 12279:2000 <\/td>\n<\/tr>\n
75<\/td>\n8.6 Gas measuring systems \u2014 Expected revision of EN 1776:2015 <\/td>\n<\/tr>\n
76<\/td>\n8.7 Pipelines for maximum operating pressure up to and including 16 bar \u2014 Expected revision of EN 12007 Parts 1 to 4 and EN 12327:2012 <\/td>\n<\/tr>\n
79<\/td>\n8.8 Pressure testing, commissioning and decommissioning procedures \u2014 Expected revision of EN 12327:2012 <\/td>\n<\/tr>\n
80<\/td>\n8.9 Welding of steel \u2014 Expected revision of EN 12732:2013
8.10 Service lines \u2014 Expected revision of EN 12007-5:2014 <\/td>\n<\/tr>\n
83<\/td>\n8.11 Gas installation pipework\u2013 Expected revision of FprEN 15001-1:2019 and EN 15001-2:2019 <\/td>\n<\/tr>\n
87<\/td>\n8.12 Gas pipework for buildings \u2014 Expected revision of EN 1775 <\/td>\n<\/tr>\n
88<\/td>\n8.13 Underground gas storage\u2013 Expected revision of EN 1918-1:2016 to -5:2016 <\/td>\n<\/tr>\n
93<\/td>\n8.14 Safety and Integrity Management System \u2014 Expected revision of EN 16348 and EN 15399 by prEN 17649 (merged standard) <\/td>\n<\/tr>\n
94<\/td>\nAnnex A (informative)Any issue coming up during the discussion and outside of the TC 234 scope <\/td>\n<\/tr>\n
95<\/td>\nAnnex B (informative)Safety characteristics of natural gas-hydrogen mixtures <\/td>\n<\/tr>\n
96<\/td>\nAnnex C (informative)Operating principles for gas warning devices [2]
C.1 General
C.2 Gas warning devices in explosion protection
C.3 Calibration and adjustment of Gas warning devices <\/td>\n<\/tr>\n
97<\/td>\nC.4 Where to install the gas sensors for monitoring hazardous areas? <\/td>\n<\/tr>\n
98<\/td>\nAnnex D (informative)Hydrogen pressure versus hydrogen percentage <\/td>\n<\/tr>\n
99<\/td>\nAnnex E (informative)Hydrogen pressure versus hydrogen fugacity <\/td>\n<\/tr>\n
101<\/td>\nAnnex F (informative)An example of the use of an existing gas pipeline for hydrogen gas <\/td>\n<\/tr>\n
103<\/td>\nAnnex G (informative)Use of polyamide (PA-U) in gas piping systems in relation to hydrogen, methane or their mixtures
G.1 General
G.2 Chemical effect of hydrogen (H2), methane (CH4) or their mixtures on PA-U
G.2.1 General statement against hydrogen embrittlement
G.2.2 Chemical resistance tables <\/td>\n<\/tr>\n
104<\/td>\nG.2.3 Chemical resistance studies for the effect of hydrogen or methane or their mixtures on PA-U
G.2.3.1 Effect of H2 on high molecular weight Polyamide <\/td>\n<\/tr>\n
105<\/td>\nG.2.3.2 Effect of hydrogen or methane or their mixtures on PA-U11 <\/td>\n<\/tr>\n
107<\/td>\nG.3 Permeation of hydrogen or methane or their mixtures through PA-U
G.3.1 General
G.3.2 Permeation of hydrogen or methane through PA-U12 <\/td>\n<\/tr>\n
108<\/td>\nG.3.3 Permeation of H2 or CH4 or their mixtures through PA-U11 <\/td>\n<\/tr>\n
110<\/td>\nG.3.4 Multilayer pipe (MLP) concepts with H2 barrier layer
G.4 Conclusion about effect of hydrogen or methane or their mixtures on PA-U11 and PA-U12
G.5 Further relevant PA-U behaviour
G.5.1 Squeeze-off
G.5.1.1 Squeeze-off behaviour in air <\/td>\n<\/tr>\n
111<\/td>\nG.5.1.2 Squeeze-Off behaviour in hydrogen <\/td>\n<\/tr>\n
112<\/td>\nG.5.1.3 Squeezed off area and effect on creep gas levels for PE100RC and PAU12 pipes <\/td>\n<\/tr>\n
113<\/td>\nG.5.2 Training and qualification of welding personnel <\/td>\n<\/tr>\n
114<\/td>\nAnnex H (informative)Netbeheer Nederland Study for biomethane and 100 % hydrogen <\/td>\n<\/tr>\n
116<\/td>\nAnnex I (informative)Responsibility of CEN\/TC 234 ‘Gas infrastructure’ Working groups for the parts of the gas infrastructure along the chain <\/td>\n<\/tr>\n
117<\/td>\nAnnex J (informative)Symbols and abbreviations <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Gas infrastructure – Consequences of hydrogen in the gas infrastructure and identification of related standardisation need in the scope of CEN\/TC 234<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
BSI<\/b><\/a><\/td>\n2022<\/td>\n130<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":402327,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2641],"product_tag":[],"class_list":{"0":"post-402318","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-bsi","8":"first","9":"instock","10":"sold-individually","11":"shipping-taxable","12":"purchasable","13":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/402318","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/402327"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=402318"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=402318"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=402318"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}