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CSA - B108.1-21

Compressed natural gas refuelling stations installation code

active, Most Current
Organization: CSA
Publication Date: 1 January 2021
Status: active
Page Count: 69
ICS Code (Petroleum products and natural gas handling equipment): 75.200
scope:

Inclusions

This Code applies to all compressed natural gas (CNG) refuelling stations, including those that are fixed or mobile and intended for private or public dispensing operations.

Exclusions

This Code does not apply to

a) refuelling vehicles with liquefied natural gas (LNG). Refuelling vehicles with LNG is addressed in CSA B108.2. However, when an LNG facility has capacity for CNG vehicle refuelling, this Code applies to facilities downstream of the L/CNG odorizer's outlet isolation valve;

b) transfer of CNG from the CNG vehicle fuel storage system of one vehicle to the CNG vehicle fuel storage system of another vehicle. This does not apply to a bulk container; and

c) listed residential fuelling appliances (RFAs) and listed non-residential vehicle fuelling appliances (VFAs), except where

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

ii) 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 D.1).

Pressure terminology

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

Terminology

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; and "may" is used to express an option or that which is permissible within the limits of the Code.

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.

Use of SI units

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.

Notes:

1) IEEE/ASTM SI 10 or ISO 80000-1 can be used as a guide when converting imperial units to metric units.

2) Where the abbreviation "gal" is used in this Code, it indicates a U.S. gallon equivalent to 3.785 L water capacity.

3) This Code was developed originally using the imperial system of measurement and subsequently converted to metric units having three significant digits. Every attempt has been made to provide accurate conversion values; however, when designing systems using these values, engineering judgment needs to be applied.

Document History

B108.1-21
January 1, 2021
Compressed natural gas refuelling stations installation code
Inclusions This Code applies to all compressed natural gas (CNG) refuelling stations, including those that are fixed or mobile and intended for private or public dispensing operations. Exclusions...
January 1, 2021
Compressed natural gas refuelling stations installation code
Inclusions This Code applies to all compressed natural gas (CNG) refuelling stations, including those that are fixed or mobile and intended for private or public dispensing operations. Exclusions...

References

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