Natural gas and propane installation code
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An important resource for gas and propane industry workers across Canada, the 2015 edition of B149.1-15 - Natural gas and propane installation code reflects the latest advances in technology and the most current safety requirements.
B149.1-15 applies to the installation of:
- Appliances, equipment, components, and accessories where gas is to be used for fuel purposes
- Piping and tubing systems
- Vehicle-refueling appliances and associated equipment
- Stationary gas engines and turbines. The code has been reviewed by regulatory authorities across Canada, and is expected to be adopted into law in every Canadian province and territory.
Why You Need to Know the 2015 Edition:
- Updated scope provides guidance on metallic fittings, stainless steel tubing, pressure regulators for propane vehicle usage, direct gas-fired process air heaters and more
- Consolidated clauses from other standards in the B149 Series make the standard more comprehensive and streamlined
- New clauses for mobile homes, recreational vehicles, highway vehicles, outdoor food service units, and wash-mobiles include specialized requirements
- Simplified references and definitions allow for improved application of the standard's clauses
This is the fifteenth edition of CSA B149.1, Natural gas and propane installation code. It supersedes the previous editions, published in 2010, 2005, and 2000 by the CSA Group (CSA) as CAN/CSA-B149.1, in 1995, 1991, 1986, 1980, 1978, 1976, and 1974 by the Canadian Gas Association (CGA), and in 1971, 1966, 1962, and 1958 by the CSA Group.
In 1958, the CSA Group published the first edition of CSA B149, Installation Code for Gas Burning Appliances and Equipment. It was superseded by later editions in 1962, 1966, and 1971. Following the publication of the 1966 edition, the decision was made to split the Code into two parts: B149.1, dealing with the installation of appliances and equipment burning natural gas, and B149.2, dealing with the installation of appliances and equipment burning propane. As a first step, B149.2 was prepared and first published in 1969.
The Canadian Gas Association was accredited by the Standards Council of Canada as the standards development organization responsible for preparing standards for gas-burning appliances and equipment, and in this connection took over responsibility for the B149 Code in 1974. New editions of the Code were subsequently published in 1974, 1976, 1978, 1980, 1986, 1991, and 1995.
On June 30, 1997, the CSA Group acquired International Approval Services (IAS), which was until then a joint venture of the American Gas Association (AGA) and the Canadian Gas Association. Under this agreement, CSA acquired the complete range of IAS standards administration, certification, and registration products and services for appliances and accessories fuelled by natural and liquefied petroleum gases. In 1998, the CSA B149 Installation Code Committee agreed to publish a Natural Gas and Propane Installation Code that would amalgamate the first seven sections of CAN/CGA-B149.1 and CAN/CGA-B149.2 to become CAN/CSA-B149.1-00. This amalgamation was in response to the trend among the authorities having jurisdiction of combining licensing and training for natural gas and propane. The remaining sections 8 to 14 of CAN/CGA-B149.2 became CAN/CSA-B149.2-00, Propane Storage and Handling Code.
In this 2015 edition, where a major change or addition to the previous edition of the Code has been made, the clause, table, or figure affected is identified by the symbol delta in the margin. Users of the Code are advised that the change markers in the text are not intended to be all-inclusive and are provided as a convenience only; such markers cannot constitute a comprehensive guide to the revisions made to the Code. Care must therefore be taken not to rely on the change markers to determine the current requirements of the Code. As always, users of the Code must consider the entire Code and any local amendments.
The CSA B149.1 Code Committee, which is responsible for preparing this Code, consists of members of the provincial gas inspection authorities, natural gas utilities, propane distributors, appliance, equipment, and accessory manufacturers, certification organizations, and representatives from the Heating, Refrigeration and Air Conditioning Institute of Canada, the Mechanical Contractors Association of Canada and federal government departments. This Code has been formally approved by the CSA B149.1 Technical Committee for the Natural Gas and Propane Installation Code and by the Interprovincial Gas Advisory Council.
This Code applies to the installation of
(a) appliances, equipment, components, and accessories where gas is to be used for fuel purposes;
(b) piping and tubing systems extending from the termination of the utility installation or from the distributor's propane tank;
(c) vehicle-refuelling appliances and associated equipment meeting the requirements of a general-purpose appliance to fill a natural-gas-fuelled vehicle; and
(d) stationary gas engines and turbines.
This Code does not apply to
(a) marine or pipeline terminals;
(b) gas where used as a feedstock in petroleum refineries or chemical plants;
(c) utility pipeline distribution and transmission pipelines;
(d) storage and handling of liquefied natural gas or underground reservoirs for natural gas;
(e) the installation of NGV fuel systems, containers, and refueling stations;
(f) the storage and utilization of compressed natural gas on boats;
(g) the installation of vehicle-refuelling appliances when NGV storage containers are installed as part of the system;
(h) refrigerated storage or underground reservoirs for propane;
(i) propane used on boats;
(j) propane used as a propellant in aerosol containers;
(k) butane fuel cylinders of 150 g capacity or less; and
(l) the installation of containers and equipment to be used for propane in distribution locations and filling plants and on tank trucks, tank trailers, and cargo liners.
Where the term gas is used, the requirements of this Code include, and apply equally to, any of the following gases or mixtures of them: natural gas, manufactured gas, or mixtures of propane gas and air, propane, propylene, butanes (normal butane or isobutane), and butylenes.
This Code and any Standards referenced in it do not make or imply any assurance or guarantee with respect to the life expectancy, durability, or operating performance of equipment and materials referenced in the Code.
The values given in yard/pound units are the standard. This Code contains SI (metric) equivalents to yard/pound units so that the Code can be used in SI (metric) units. SI (metric) equivalents may be approximate.
In this Code, unless approved otherwise by the authority having jurisdiction, shall indicates a mandatory requirement; should indicates a recommendation or that which is advised but not mandatory; and may indicates an advisory or optional statement.
Notes to the text do not include mandatory or alternative requirements. The purpose of a note is to separate from the text explanatory or informative material that is not properly a part of this Code.
Notes to figures and tables, however, are considered part of the figure or table and may be written as mandatory requirements.
Annexes are designated normative (mandatory) or informative (non-mandatory) to define their application.