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CSA B108

4th Edition, 2018

Complete Document

Natural gas refuelling stations installation code



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Product Details:

  • Revision: 4th Edition, 2018
  • Published Date: January 2018
  • Status: Active, Most Current
  • Document Language: English
  • Published By: CSA Group (CSA)
  • Page Count: 128
  • ANSI Approved: No
  • DoD Adopted: No

Description / Abstract:

Part 1 of this Code applies to all compressed natural gas refuelling stations, including those that are intended for fleet or public dispensing operations.

Part 1 of this Code does not apply to refuelling vehicles with liquefied natural gas (LNG). Refuelling vehicles with LNG is addressed in Part 2 of this Code.

However, if an LNG facility has capacity for CNG vehicle refuelling, Part 1 of this Code applies to facilities downstream of the isolation valve at the outlet of the natural gas odourizer.

Part 1 of this Code does not apply to listed residential fuelling appliances (RFAs) and listed nonresidential vehicle fuelling appliances (VFAs) except where

a) the aggregate inlet flow capacity of a connected VFA or RFA, or a combination thereof, exceeds 0.850 Sm3/min (30 SCFM), or

b) the VFA or RFA is connected to storage, in which case coverage applies to the storage and dispensing system starting at the outlet of the individual VFA or RFA (see Figure B.1).

All references to pressure throughout Part 1 of this Code are to be considered gauge pressures, unless otherwise specified.

In this Code, “shall” is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the code; “should” is used to express a recommendation or that which is advised but not required; “may” is used to express an option or that which is permissible within the limits of the code; and “can” is used to express possibility or capability.

Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material.

Notes to tables and figures are considered part of the table or figure and may be written as requirements.

Annexes are designated normative (mandatory) or informative (non-mandatory) to define their application.

The values given in SI units are the units of record for the purposes of this Code. The values given in parentheses are for information and comparison only.
CSA B51