scope:

PREFACE

The ultimate purpose for this document is that it constitute the performance standard for North America regarding fueling station reciprocating compressors applicable to dispensing natural gas to vehicles. Major funding in support of the consensus process for this Standard was provided by the Natural Gas Vehicle Coalition (NGVC), whose assistance is acknowledged with thanks.

This document is designated as being Guidelines because it presents the industry's minimum requirements for it's "best practices". It is also designated as being a Standard because of the consensus process by which it has been developed and approved. In the former instance the document has been labelled according to the type of information it contains and in the latter instance according to the levels of input, evaluation and acceptance of this information.

Portions of ANSI/NGV 4.8 CSA 12.8 are taken from API 11P, Specification for Packaged Reciprocating Compressors for Oil and Gas Production Services, Second Edition, November, 1989 and reproduced with permission of the American Petroleum Institute (API), 1220 L Street, Northwest, Washington, D.C. 20005.

This proposed standard requires the purchaser to specify certain details. A bullet (•) in the margin indicates that information and/or a decision by the purchaser is required.

This publication represents a standard for safe operation, substantial and durable construction and performance testing of compressor packages containing reciprocating compressors for natural gas dispensing systems, within limitations given below and in the scope of this standard.

This standard is based on proven engineering principles, research and the combined expertise of gas utilities, manufacturers, users, and others having specialized experience.

Nothing in this standard is to be considered in any way as indicating a measure of quality beyond compliance with the provisions it contains. It is designed to allow compliance of products which may exceed that specified in the provisions herein. In its preparation, full recognition has been given to possibilities of improvement through ingenuity of design. This standard is subject to revision as further experience and investigation may show it is necessary and desirable.

The Canadian Standards Association (CSA), and their respective Laboratories, and CSA America, Inc., do not assume or undertake to discharge any responsibility of the manufacturer or any other party. CSA and/or CSA America, Inc., shall not incur any obligation or liability for damages, including consequential damages, arising out of or in connection with the use, interpretation of or reliance upon this standard.

Users of this Harmonized American National and Canadian Standards Association Standard are advised that the devices/products/activities within its scope may be subject to regulation at the Federal, state, provincial, or local levels. Users are strongly urged to investigate this possibility through appropriate channels. In the event of a conflict with this standard, the Federal, state, provincial or local regulations should be followed.

This standard does not apply to fuel system components that will be incorporated during original manufacture of motor vehicles which comply with Federal Motor Vehicle Safety Standards (FMVSS) or Canadian Motor Vehicle Safety Standards (CMVSS) for Natural Gas Powered Vehicles.