Content of DVGW Code of Practice G 1010 This document DVGW Code of Practice G 1010 contains requirements for the qualification and organisation of operators of gas systems on factory premises, that are connected to the public gas supply (customer systems for internal company supply in accordance with Section 3 No. 24b EnWG). They include gas systems in the area of industrial gas use up to the last shut-off device before the gas is used. Up to and including the last shut-off device upstream of the consumption system, these systems fall within the scope of the Energy Industry Act (§ 3, No. 15 EnWG). The DVGW Set of Rules therefore apply to these systems. This worksheet applies to gas systems, that are operated with gases of the 2nd and 5th gas family in accordance with DVGW Code of Practice G 260. If the gas systems are operated with natural gas-hydrogen mixtures of the 2nd gas family or with hydrogen of the 5th gas family, the guidelines for H2 readiness infrastructure, DVGW Guideline G 221, and gas application, DVGW Guideline G 655, must be observed in addition to the worksheets listed above. Annex A contains an informative overview. For gases that do not comply with the provisions of DVGW Code of Practice G 260, this technical rule may be applied mutatis mutandis, considering the specific properties of the gases (e.g. metallurgical gases, landfill gases) and any other existing provisions. For gases of the 3rd gas family according to DVGW Code of Practice G 260 (liquified petroleum gas), reference is made to DVGW G Code of Practice 1040 or TRF / DGUV Rule 110-010 and BetrSichV for the collective supply of liquid petroleum gas. For biogas plants, reference is made to DVGW Code of Practice G 1030. The aim of this Code of Practice G 1010 is to create a basis for safe supply - this includes the construction and safe operation of the gas pipeline system in accordance with the Energy Industry Act. By complying with the requirements of the DVGW regulations in this area, the points to be observed in the BetrSichV and DGUV Information 203-092 are also considerd. If it is a closed distribution network in accordance with § 110 EnWG (supply to third parties), DVGW Code of Practice G 1000 shall be considered. Industrial gas applications and directly associated system components are subject to the safety requirements of the relevant EG regulations and EG directives, which are described in the law on technical work equipment and consumer products (Product Safety Act - ProdSG and its subordinate regulations, e.g. Gas Appliances Regulation, 9th ProdSV and 14th ProdSV or subsequently harmonised DIN EN standards) and in particular in the Ordinance on Industrial Safety and Health (BetrSichV). Table of contents Foreword. 1 Scope 2 Normative references 3 Terms, symbols, units and abbreviations 3.1 Gas systems / energy systems (on factory premises) 3.1.1 Customer systems for operational self-supply 3.1.2 Closed distribution grids 3.2 Operation of gas systems on factory premises 3.3 Gas applications 3.4 Gas 3.4.1 Natural gas and hydrogen-rich methane gases 3.4.2 Hydrogen 3.5 Skilled employee 3.5.1 Operators of gas systems on factory premises 3.5.2 Technically responsible person 3.5.3 Technically skilled employee 3.5.4 Instructed person 3.6 Contractual partner 3.6.1 Operations manager 3.6.2 Service provider 4 Basic requirements 5 Tasks and fields of activity 6 Organisation 6.1 General information 6.2 Organisational structure 6.3 Process organisation 6.4 Documentation 7 Personal 7.1 Personnel qualification (own personnel) 7.2 Technically responsible person 7.2.1 Responsibilities 7.2.2 Qualification 7.2.3 Further education and training 7.3 Technically skilled employee 7.3.1 Responsibilities 7.3.2 Qualification 7.3.3 Further education and training 7.4 Instruction of the competent person 7.5 Appointed / authorised persons or designated persons 7.6 Contractual partner 7.6.1 Selection of contractual partners (external companies) 7.6.2 Monitoring of contractual partners (external companies) 7.6.3 Employees of the contractual partners 8 Technical equipment Annex A (informative) Annex B (informative Important normative references DVGW Code of Practice G 1030 DVGW Code of Pracitce G 260 DVGW Code of Practice G 492 DVGW Information Gas No. 10 DVGW Code of Practice G 497 DVGW Code of Practice G 213   German Version DVGW-Arbeitsblatt G 1010   Buy DVGW Code of Practice G 1010 You can purchase DVGW Code of Practice G 1010 as PDF file for immediate download.  

Content of DVGW Code of Practice G 100 DVGW Code of Practice G 100 serves as a basis for assessing the competence of technical experts for inspecting the technical safety of energy systems for gas and hydrogen supply. It specifies qualification requirements for technical experts for energy systems for the pipeline-bound supply of gas and hydrogen to the general public. In the course of converting the gas infrastructure to hydrogen in accordance with DVGW Code of Practice G 260, technical experts have a special role to play. The qualification requirements described in this DVGW Code of Practice G 100 form the basis for the inspections to be carried out in this context. This includes, in particular,the continuous training of the technical experts in relation to the developing state of the art. G 100 describes the qualification requirements for technical experts who inspect and assess the technical safety of gas supply energy systems on the basis of the Energy Industry Act (Energiewirtschaftsgesetz - EnWG) in accordance with the requirements of GasHDrLtgV and the DVGW Set of Rules. The person commissioning the inspection is responsible for selecting a suitable technical expert for the inspection task in question. When commissioning a certified technical expert, the qualification for the relevant technical field can be verified by a valid certificate from a certification body accredited in accordance with GasHDrLtgV or official recognition in accordance with GasHDrLtgV. When commissioning an inspection body, the inspection body is responsible for selecting technical experts qualified for the respective inspection task. The technical expert is also responsible for checking whether his qualifications are sufficient for the inspection task. This Code of Practice G 100 can serve as a basis for this. DVGW Code of Practice G 100 ensures that the legal and technical framework conditions are mastered, only well-trained persons are recognised as technical experts, the technical experts have a practical connection to their area of specialisation, have sound knowledge and experience in the respective area of expertise, the specialised knowledge can be applied to specific issues in the subject area, the tasks, possibilities and discretionary scope of the technical experts can be recognised, used andfilled. The following amendments have been made compared to DVGW Code of Practice G 100:2015-10: The normative references have been adapted to the current status of the DVGW Set of Rules. The term energy facility was adapted due to the planned expansion of the term “Energy” to includehydrogen in the Energy Industry Act in order to clarify that this Code of Practice also applies to hydrogennetworks. The designation of Area of Expertise VIb has been adapted to the contents of the 2020 edition ofDVGW Code of Practice G 472. Notice has been included in the description of the areas of expertise that the technical experts inaccordance with this Code of Practice fulfil the qualification requirements for a person qualified toperform inspections in accordance with the German Industrial Safety and Health Ordinance(Betriebssicherheitsverordnung - BetrSichV) for testing the explosion safety of systems in their respectivearea of expertise. A corresponding explanation has been included in the foreword. In clauses 6.4.2.2, 6.4.2.3, 6.4.2.5 and 6.4.3.8, the term "explosion protection" has been replaced by"explosion safety" in order to establish the reference to the test object in accordance with IndustrialSafety and Health Ordinance (BetrSichV). For area of expertise IX, the required level of qualification was compared with the requirements of DINEN ISO 15257, which has replaced DIN EN 15257. In clause 6.5.1, references to the explosion safety testing for FG II, III, V and VIII have been added asa prerequisite for initial recognition. In Annex A, the listed Technical Rules have been adapted to the current status of Set of Rules andexpanded to include the technical rules on hydrogen systems. Table of contents Foreword 1 Scope 2 Normative references 3 Terms, symbols, units and abbreviations 4 Tasks of experts 5 Areas of Expertise 6 Qualification requirements Annex A (informative) - Assignment of the regulatory documents to the Areas of Expertise References Important normative references DVGW Code of Practice G 213DVGW Code of Practice G 280DVGW Code of Practice G 414DVGW Code of Practice G 463DVGW Code of Practice G 469DVGW Code of Practice G 472DVGW Code of Practice G 492DVGW Code of Practice G 497 German Version DVGW-Arbeitsblatt G 100   Buy DVGW Code of Practice G 100 You can purchase DVGW Code of Practice G 100 as PDF file for immediate download. 

Content of DVGW Information GAS No. 29 This DVGW Information GAS No. 29 provides an overview of the requirements that must be met for the use of hydrogen in systems for the pipeline-bound supply of the general public and the connected gas applications so that these can be labelled "H2-ready".  In this DVGW Information GAS No. 29, a model is proposed to visualise the different levels of assessment in order to classify statements on the readiness of infrastructures for the grid-based supply of hydrogen. The term "H2-ready" is used to describe this readiness for hydrogen use, which is explained in the respective context in this DVGW Information GAS No. 29.  The proposed model can also be applied analogously to new or existing plants for operational self-supply in which hydrogen is to be used, taking into account the specific legal requirements.  Safe operation with the hazardous substance natural gas is already guaranteed for gas supply networks and gas applications. If a natural gas network is converted into a hydrogen network, the same level of safety can be guaranteed if the DVGW Codes of Practice applicable to hydrogen are taken into account - without prejudice to other legal requirements. Table of contents Foreword 1 Scope 2 DVGW Codes of Practice 3 Terms and definitions 4 Model for the application of the term "H2-ready" 5 Assessment of the gas infrastructure and gas applications   Anhang A - Overview of important DVGW Set of Rules and the supporting H2 guidelines Bibliography German version DVGW-Information GAS Nr. 29 Buy DVGW Information GAS No. 29 You can purchase DVGW Information GAS No. 29 as PDF file for immediate download. 

Content of DIN CEN/TR 17924 DIN CEN/TR 17924 is written in preparation of future revision of standards dealing with the general safety, design, construction, and performance requirements and testing of safety, control or regulating devices (hereafter referred to as controls) for burners and appliances burning hydrogen (see 3.2) or hydrogen admixtures (see 3.3). DIN CEN/TR 17924 refers to controls with declared maximum inlet pressure up to and including 500 kPa and of nominal connection sizes up to and including DN 250. The main target of DIN CEN/TR 17924 is to lay the ground for defining requirements and tests for controls used for safety related functions (e. g., safety valves, automatic burner control systems, gas/air ratio controls) or regulating devices. Table of contents European foreword Introduction 1 Scope 2 Normative references 3 Terms and definitions 4 Classification 5 Common properties 6 General considerations regarding design and construction 7 Performance 8 Marking, instructions Annex  Important normative references DIN EN 13611  Buy DIN CEN/TR 17924 You can purchase DIN CEN/TR 17924 as PDF file for immediate download or as printed edition.   

Content of DVGW Guideline G 269 G 269 provides recommendations for the quantification of gas components that can be relevant for purpose of monitoring compliance with standards.  DVGW G 269 provides recommendations for measuring the quality of gases of the 2nd and 5th gas family in accordance with DVGW Code of Practice G 260 for feeding into gas networks. This document also considers minor components of gases that are used for conditioning (biogas) gases for the purpose of feeding them into the grid. The following changes have been made compared to DVGW Guideline G 269:2016-09 Expansion of the scope of application by including the 5th gas family Editorial adaptation of standards, test procedures and determination methods Inclusion of a parameter table for calculating the combustion characteristics Consideration of additional feed-in/supply points  Table of contents Foreword Introduction    1 Scope 2 Normative references    3 Terms, symbols, units and abbreviations    4 Test parameters and limit values    5 Condition determination        6 Logging/verification     Important normative references DVGW Code of Practice G 260 German Version  DVGW-Arbeitsblatt G 269   Buy DVGW Guideline G 269 You can purchase DVGW Guideline G 269 as PDF file for immediate download. 

This standard G 493-2 encompasses personal and professional requirements for companies providing maintenance for gas plants and installations that fall within the scope of DVGW G 495 (A), as well as biogas injection and refeeding plants as specified by DVGW G 265-2 or hydrogen injection plants as specified by DVGW G 265-4 (M).Companies which, within the context of comprehensive plant management, either as original operators or as contractors, are responsible for the maintenance of energy plants, and possess the required personal qualification and organization according to DVGW G 1000 (A), may conduct the maintenance of gas plants without certification as defined by this standard within the network which they have the abovementioned responsibility for. The prerequisite for the maintenance without certification as mentioned above is that the expert and tech-nical conditions detailed in this standard are met by the company’s own workforce or by service providers with a TSM certification or other corresponding certifications. The company shall appoint the experts re-sponsible for maintenance in writing. The fulfilment of these conditions can be verified e.g. during a TSM review according to DVGW G 1000 (A).

This document ISO 17885 specifies the requirements for mechanical fittings for joining plastic piping systems for the supply of gaseous fuels, the supply of water for human consumption and other purposes, as well as for industrial application. It provides a unified set of test methods to check the performance of the fittings, depending on their intended use. It is the responsibility of the purchaser or specifier to select the appropriate fitting, taking into account their particular requirements and any relevant national guidance or regulations and installation practices or codes.

GW 301 Technical Rule ‑ Standard 01/2021

For the purposes of this Standard GW 381, the term minimum requirements implies that further requirements can ensue from technical rules and legal provisions and/or that the ordering party may stipulate further requirements, in particular in the presence of special features or needs for protection or other constraints. The optional criteria shall, without claiming to be exhaustive, be considered guidance for the ordering party who shall decide on the need for further requirements. If a company consists of several units, this technical rule applies to the units in charge of underground construction and, without exception, to independent subsidiaries as well. A subsidiary shall be assumed to be independent if, in effect, it actually controls most operations and/or if the head office of the company is unable to provide the supervision of the staff and the construction sites as required.

Final Report G 201418 06/2018 ‑PDF file‑