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Technical Standards
Compressed Natural Gas
| Group IV | |
|---|---|
| NAG-E 401 (ex ET-ENRG-GD-Nº 1) | Fastening devices for CNG cylinders |
| NAG-E 402 (ex ET-ENRG-GD-Nº 2) | Vehicles for bulk CNG transport. |
| NAG-E 403 (ex ET-ENRG-GD-Nº 3) | CNG packaged compression and storage and other enclosed equipment, not requiring perimeter wall. |
| NAG-E 404 (ex ET-ENRG-GD-Nº 4) | CNG integrated compression and dispensing equipment certification, installation and control. |
| NAG-E 405 (ex ET-ENRG-GD-Nº 5) | CNG carbon fiber composite cylinders installation, use and control. |
| NAG-E 406 (ex ET-ENRG-GD-Nº 6) | Transport system for CNG containers modules. |
| NAG-E 407 | Motorcycles Compressed Natural Gas (CNG) fuel system. It regulates the minimum technical and safety requirements for the installation, qualification, use and control of CNG fuel systems on natural gas propelled motorcycles. |
| NAG-E 408 Technical Specification for CNG Installation Workshops Technical Approval Certification |
The purpose of this Technical Specification is to set out basic guidelines, which a CNG Installation Workshop shall comply with so as to be accredited as being technically capable of performing the operations of CNG Fuel System installation, inspection, modification, dismounting or withdrawal, according to regulations in force. |
| NAG-E 409 Hoses for CNG Dispensers Instructions for their Installation, Use and Control |
This document includes safety considerations. It must be carefully complied with during every stage, from hoses´ reception, storage, installation, use, maintenance and control, since the inadequate use, improper installation or maintenance of hoses or assemblies may cause body injuries or material damage. Its compliance reduces the chances of failure of any component or the system, thus reducing the risks of damages. |
| NAG 415 (ex GE-N1-115) Regulations. Definitions and Terminology. Specifications and Procedures. Technical Documentation to be complied with by all registered categories of manufacturers and importers. |
It defines the functions of each individual or legal entity involved in the system. Definitions and terminology applied. List of specifications to be used in the manufacture of cylinders, valves and fittings for local and foreign activity. |
| NAG 416 (ex GE-N1-116) Minimum technical and safety Standards and Specifications for on-board CNG fuel system installation and testing. |
It defines the requirements to be complied with during configuration and mounting; the tests and verifications to be performed on the system and on the motor vehicle and the feature enabling the identification of motor vehicles fitted with CNG equipment. It also includes the minimum requirements for passenger public transport conversion. |
| NAG 417 (ex GE-N1-117) Standard for components designed to operate with compressed natural gas in vehicles carburetion systems and operation requirements |
It applies to the construction and performance of CNG system components for providing motive power in new or used motor vehicles that require internal combustion engine. |
| NAG 418 (ex GE-N1-118) Regulations for CNG Filling Stations. |
This standard specifies the characteristics and location of CNG containers for storage and compression plants, compressors installations, dispensing installations, piping, fittings, and other supplementary elements. Furthermore, it regulates the distribution and size of the dispensing outlet, stipulates the guidelines for vehicle maneuvering yard and specifies methods for re-qualification as well as regularity in their implementation on CNG vehicle Filling Stations once enabled and started up. |
| NAG 419 (ex GE-N1-119) Parking and Garages. Difficulties and Accidents. Instructions for CNG filling. |
It states garages characteristics and requirements to be complied with for parking CNG vehicles; stipulates parking standards; includes stages and procedures to be followed for CNG filling at stations, and provides recommendations to consider in case of difficulties and accidents. |
| NAG 441 (ex GE-N1-141) Compression equipment for compressed natural gas filling stations. |
It regulates compression equipment and dispensers to be installed in CNG filling stations. |
| NAG-E 444 (ex GE-N1-144) Technical specification for periodic re-qualification of CNG seamless steel cylinders according to IRAM 2529 standard |
It specifies the requirements for the mandatory periodical scheduled inspection and its testing on each cylinder, verifying the necessary requirements to ensure reliability and acceptability. |
| Resolutions | |
|---|---|
| Resolution ENARGAS Nº 93/94 | It approves the mechanisms for quality and safety inspection for CNG Filling Stations
qualification and penalties to be applied to them by Distribution Licensees. Replaced by Resolution ENARGAS Nº 2629 |
| Resolution ENARGAS Nº 138/95 | It stipulates the normative framework for setting up a registry of Certification Organizations and guidelines to be complied with for the approval of components and equipment for the gas industry. |
| Resolution ENARGAS Nº 139/95 | It states the regulations for protecting user’s rights, and guidelines for individuals and legal entities
involved in the CNG system in order to guarantee service quality, efficiency and safety. For this purpose, an IT Center for recording and updating data of the individuals and entities involved in the CNG system was created. |
| Resolution ENARGAS Nº 197/95 | It stipulates the obligation of gas Distributors to inspect CNG Filling Stations, being empowered to preventively shut
off gas in such station where a motor vehicle not bearing the pertinent sticker is filled with gas. Replaced by Resolution ENARGAS Nº 2629 |
| Resolution ENARGAS Nº 591/98 | It states the minimum mandatory requirements for contracting an insurance against liabilities to third parties by the individuals and legal entities involved in the CNG system. |
| Resolution ENARGAS Nº 2592/02 | Extension of provisions set forth in annex II of Resolution ENARGAS Nr. 139/95 |
| Resolution ENARGAS Nº 2603/02 | Substitutes the "Procedure for conversion, annual inspection, modification or refusal of CNG Fuel
System" of Resolution N° 139/95, annex I by the "Procedure for conversion, annual inspection,
modification, dismounting, withdrawal or reinstallation of Compressed Natural Gas (CNG) Fuel System in motor
vehicles", Annex I of this Resolution. It states the guidelines for drafting the "Guide for the use of CNG Fuel System" and "Safety recommendations for the use of motor vehicles using CNG in their propulsion system". A site at ENARGAS web page allowing disaggregated access to the CNG Centralized IT System to Users, Installation Workshops, CNG Fuel System Suppliers, Centers for CNG Cylinders Periodic Inspection and other Official Entities is enabled. |
| Resolution ENARGAS Nº 2629/02 | It repeals Resolutions ENARGAS N° 41/93, 93/94 and 197/95. It approves the mechanisms for quality and safety inspection for qualifying Compressed Natural Gas Filling Stations. General regulations. Specific regulations for Filling Stations. Centralized IT Registry. Minimum guidelines for the mandatory bonding insurance for those stations. |
| Resolution ENARGAS Nº 2760/02 | Implements qualification of CNG fuel system components in lots. It enables differentiation of new elements from used ones, making duplication of serial numbers difficult and improving individualization of already installed elements. |
| Resolution ENARGAS Nº 2767/02 | To render ineffective the fifth paragraph of section c) "Hoses”, item 3-1 of Chapter “Specifications for periodic methods of re-qualification” of standard GE-N1-118 “Standards and technical and safety specifications for compressed natural gas compression, storage and dispensing stations” that states: “The hoses shall be assigned a shelf life according to the term guaranteed by the supplier in the certificate”. |
| Resolution ENARGAS Nº 2768/02 | It addresses the relocation of the qualifying sticker for vehicle CNG filling, valid until December 2002, for its compliance with the pertinent international standards and as an element that will facilitate transition to an intelligent control system. The sticker is divided into two: one internal sticker affixed on the inner side of the hood or on the left strut (driver’s side) for enabling CNG filling and the other, for identifying the vehicle as CNG propelled and compliant with national and international safety standards, serves as an indicator for firemen, civil defense, etc. in case of accident. |
| Resolution ENARGAS Nº 2793/03 | It stipulates the creation of a "Technical Commission for the Analysis of Intelligent System Technologies" enabling development of a comprehensive improvement of the natural gas propelled motor vehicle fleet control. Orders the feasibility analysis and the subsequent implementation of a mandatory inspection of every on-board CNG cylinder. |
| Resolution ENARGAS Nº 2947/04 | It enforces the Technical Specification for the conversion of motorcycles into a propulsion system using gasoline and natural gas as alternative fuels. It approves the prototype and subsequent control of production, ensuring that the installation does not jeopardize the structural integrity, stability, driving characteristics or maneuverability and ensures a close follow-up of this technological innovation through the implementation of safety measures. |
| Resolution ENARGAS Nº 3393/05 | To approve the Technical Specification NAG-E 409 “Hoses for CNG dispensers. Instructions for their installation, use and control”, included herein as Annex I. |
Estándares Técnicos para GNC - Versión en Español
2004 ® Ente Nacional Regulador del Gas