TSASK
TECHNICAL SAFETY AUTHORITY
O F S A S K AT C H E WA N
GAS INSPECTIONS


2020 Gas Contractor Presentation
CSA B149.2-20



               Inspiring and Shaping Excellence in Public Safety
This presentation will cover the substantial changes to
the following codes:
                     • CSA B149.2-20 - Propane storage and handling
                       code (purchase from https://store.csagroup.org)
                     • 2020 Saskatchewan Codes of Practice to CSA
                       B149.2-20, (www.tsask.ca under Gas/Act &
                       Regulations/Gas Codes ) including:
                         • SCOP changes caused directly by changes to
                           the 2015 CSA B149.2
                         • SCOP changes warranted due to experience



                                                   Inspiring and Shaping Excellence in Public Safety
B149.2-20 Propane Storage and Handling Code Color
Coding in this Presentation
                 • White background slides refer to the
                   National Codes.




                 • Light blue background slides refer to the
                   Saskatchewan Codes of Practice.




                                                     Inspiring and Shaping Excellence in Public Safety
B149.2-20 Propane Storage and Handling Code
Saskatchewan Codes of Practice 2020



                        In this presentation, the slides with a
                        light blue background will refer to
                        these Codes of Practice for
                        Saskatchewan.



                                                 Inspiring and Shaping Excellence in Public Safety
What are the Saskatchewan Codes of Practice?
• Collection of requirements and interpretations that are unique to
  Saskatchewan.
• Formed by:
  • amending clauses in the national code;
  • adding wording, illustrations or charts to clarify national code
    requirements; or
  • adding new clauses addressing specific issues unique to the
    Saskatchewan environment.


                                                       Inspiring and Shaping Excellence in Public Safety
Scope of this Presentation
2020 CSA code overview
• The Δ Delta Symbol (previously used to identify changes in the CSA
  codes) is no longer used by CSA.
• We will only be covering those clauses having a substantial technical
  change.
• We will cover only the technical changes to the Saskatchewan Codes
  of Practice.
• These codes will be enforced on all permits received May 1, 2021 &
  after.

                                                       Inspiring and Shaping Excellence in Public Safety
Scope of this Presentation
• The items addressed in this presentation are only to identify
  substantial technical changes to the Canadian Codes and the
  Saskatchewan Codes Of Practice.
• For example –B149.2 continues to specify requirements in English
  units (with metric for reference only). For 2020, Table 7.6 -Electrical
  Classification, now lists all clearances in metric (as governed by the
  Canadian Electrical Code) with English units in brackets for reference.
  We will not be covering every change made to Table 7.6 since the
  requirements to meet the Canadian Electrical Code have not changed.
• You are strongly encouraged to review the 2020 Code and
  Saskatchewan Codes of Practice in their entirety.
                                                       Inspiring and Shaping Excellence in Public Safety
This presentation will proceed
through the substantial changes
to CSA B149.2-20 and will jump
to the resulting changes to the
Saskatchewan Code of Practice
to B149.2 (slides with a light
blue background) as these areas
come up.


                Inspiring and Shaping Excellence in Public Safety
1 Scope
Please note that in this presentation:
• Clauses with major revisions will be
   shown in normal type.
• Words added into a clause will be shown
   bold and underlined.
• Words deleted from a clause will be
   shown strikethrough in red .
• Comments (like these) will be in italic
   type with blue highlighting.


                      Inspiring and Shaping Excellence in Public Safety
B149.2-20 Propane Storage and Handling - Scope
1.2 This Code does not apply to
   (a) transportation of propane;
   (b) manufacture, selection, and use of standardized means of containment under the Transportation of
       Dangerous Goods Act and Regulations;
   (c) containers which have never contained propane or are identified as having been purged to less than 10%
       of the LEL as determined by a calibrated gas meter;
   (d) marine or pipeline terminals;
   (e) gas where used as a feedstock in petroleum refineries or chemical plants;
   (f) utility pipeline distribution and transmission pipelines;
   (g) refrigerated storage or underground reservoirs formations for propane;
   (h) propane used on boats;
   (i) propane used as a propellant in aerosol containers;
   (j) butane fuel cylinders of 5.3 oz (150 g) 6.2 oz (175 g) capacity or less;
   (k) any equipment extending downstream from the inlet to any container pressure regulator (commonly
       referred to as first-stage regulator);
   (l) the installation of propane fuel system components and tanks on vehicles covered by CSA B149.5; and
  (m) propane used as refrigerant.                                               Inspiring and Shaping Excellence in Public Safety
B149.2-20 Propane Storage and Handling – General
New 4.1.4 (revised)

Where a conflict exists between the manufacturer’s certified installation
instructions and this Code, the requirements of this Code shall prevail
unless otherwise approved.

The word “certified” has been removed.
Rationale: “because not all installation instructions are certified”

                                                         Inspiring and Shaping Excellence in Public Safety
B149.2-20 Propane Storage and Handling – General
5.11.5 (revised)

It shall be the responsibility of the user to remove from service any
propane-fuelled industrial tractor or lift truck equipment where the
equipment or container is damaged or malfunctioning.

Rationale:
“to apply to all applications where propane is used as a motor fuel in other
than motor vehicles, such as ice-resurfacing machines.”
                                                       Inspiring and Shaping Excellence in Public Safety
B149.2-20 Propane Storage and Handling – Cylinders
6.1.12 (revised)
On a cylinder from which liquid is to be withdrawn:
a) the liquid service connection of the cylinder valve shall be threaded with other than
   the standard female POL thread; and
b) the liquid service outlet of the cylinder valve shall be provided with an internal
   excess-flow valve except for a cylinder for use in a Hot Air Balloon and in
   accordance with the exemption 1.50 Hot Air Balloon Cylinder under the
   Transportation of Dangerous Goods (TDG) Regulations of Transport Canada.

Hot air balloons do not require an internal excess flow valve for liquid withdrawal.

                                                                 Inspiring and Shaping Excellence in Public Safety
B149.2-20 Propane Storage and Handling – Cylinders
New clauses for cylinders used in hot air ballooning:
6.4.7
A prefill inspection shall be required for filling a hot air balloon cylinder.
6.4.8
The acceptability of a hot air balloon cylinder for filling can be verified by finding the cylinder listed in
the flight log for that aircraft and in accordance with Clause 6.1.12-(b).
6.4.9
Subject to Clauses 5.2.1 and 5.2.2, a crew member shall be present and supervise the proper filling of
the cylinders under the provisions of Clause 6.1.12-(b).
6.4.10
Hot air balloon cylinders shall not be required to be removed from the aircraft for filling.
                                                                                  Inspiring and Shaping Excellence in Public Safety
B149.2-20 Propane Storage and Handling – Cylinders
6.4.5 (new clause)

A sleeve on the cylinder shall be removed to facilitate the visual inspection
prior to filling the cylinder.




                                                        Inspiring and Shaping Excellence in Public Safety
B149.2-20 Propane Storage and Handling – Cylinders
6.5.2.6.1 Propane cylinder exchange for resale
Facilities operating cylinder exchange stations for propane that are accessible to the public shall comply
with the following requirements:
a) Cylinders shall be secured in a lockable, ventilated metal cabinet or other approved enclosure.
b) No more than four adjacent cabinets that may be located against a noncombustible building wall at
     one retail site.
c) No more than one cabinet may be located against a combustible wall.
d) Each cabinet shall contain no more than 500 lb (225 kg) of propane.
e) Each cabinet shall be located a minimum of:
     i.    3 ft (0.9 m) from any building opening,
     ii. 10 ft (3 m) from any mechanical air intake,
     iii. 25 ft (7.6 m) from the line of adjoining property occupied by schools, churches, hospitals,
           athletic fields, or other points of public gathering.
This change moves the requirements (in bold) out of the notes in fine print under
Table 6.3, and into the main body of the code. The requirements remain the same.    Inspiring and Shaping Excellence in Public Safety
B149.2-20 Propane Storage and Handling – Cylinders
6.5.2.6.1 Propane cylinder exchange for resale (continued)
f)   Cylinders shall be accessible only by authorized personnel or by use of an automated exchange
     system in accordance with 6.5.2.6.2 Automated cylinder exchange machine.
g)   A sign shall be posted on the entry door of the business operating the cylinder exchange stating “DO
     NOT BRING PROPANE CYLINDERS INTO THE BUILDING”.*
   *The equivalent French wording is “NE PAS APPORTER DES BOUTEILLES DE PROPANE Á L’INTÉRIEUR
   DU BATIMENT”.
h) An emergency contact information sign shall be posted within 10 ft (3 m) of the cylinder storage
   cabinet.
i)   Electrical equipment within 5 ft (1.5 m) of cylinders stored for resale shall meet the requirements of
     Table 7.6, part K.
j)   Protection of cylinders for resale shall be in accordance with 6.5.4.2(b), however, protection shall
     not be required for 20 lb (9 kg) cylinders provided they are in cabinets as noted in 6.5.2.6.1-a).
Posts for vehicle protection are no longer required for propane cylinder
exchange cabinets.                                                             Inspiring and Shaping Excellence in Public Safety
B149.2-20 Propane Storage and Handling – Cylinders
6.5.2.6.1 Propane cylinder exchange for resale (NEW SCOP)
J)   Protection of cylinders for resale shall be in accordance with 6.5.4.2(b), however,
     protection shall not be required for 20 lb (9 kg), or 30 lb (13.5 kg), cylinders provided
     they are in cabinets as noted in 6.5.2.6.1-a).
We expand the exemption for vehicle protection of propane cylinder exchange cabinets to
include those holding 30 lb. cylinders, as well as those holding 20 lb. cylinders.
Deleted SCOP –No longer required
5.3.2.1
Storage cages/cabinets are removed from requiring further vehicular traffic protection when
placed on a raised 6 inch (150 mm) minimum concrete pad at least 8’ (2.44 m) from a
driving lane.

                                                                          Inspiring and Shaping Excellence in Public Safety
B149.2-20 Propane Storage and Handling – Cylinders
6.5.3.8 (revised)
Moving a propane cylinder from one level to another level or the roof of a building may
be done using
(a) a freight, service elevator, or construction hoist; or
(b) a public passenger elevator or escalator, provided only the person(s) involved with
    the cylinder are in the elevator or on the escalator.

Moving a propane cylinder on an escalator is no longer permitted. A gas inspector (in another province)
witnessed 20 lb. propane cylinders being loaded by hand on to a moving escalator. No one was at the top
of the escalator to retrieve them. The worker did not see a safety issue with this procedure since it met
this clause in the code!


                                                                            Inspiring and Shaping Excellence in Public Safety
B149.2-20 Propane Storage and Handling – Tanks
TABLE 7.5 - Location of tanks at filling plants and container refill centres

All clearances in the Table up until 2015 were values of:
               Total water capacity of tanks, USWG (L)
All clearances in the Table starting in 2020 are values of:
               Water capacity per tank, USWG (L)

This change aligns with NFPA requirements in the U.S. and is a significant change for large tank farms in
Canada. The rationale is that the single largest risk is from a tank developing a leak. When that happens,
it is a single tank leaking, not the entire tank farm. The clearances required are now based on the largest
tank in the tank farm, not the total capacity of the tank farm.

                                                                              Inspiring and Shaping Excellence in Public Safety
B149.2-20 Propane Storage and Handling – Tanks
7.19.4.2 (Added wording underlined and bolded)
Guardrails used for the protection of a tank shall
be:
a) of the steel deep beam type, 12 × 162 in (300
    × 4050 mm), supported by at least two 6 in
    (150 mm) minimum pressure treated wooden
    posts or at least two W6X8.5 (W150X14)
    minimum galvanized I-beam steel posts
    buried not less than 36 in (900 mm) below
    grade and located not more than 75 in (1875
    mm) apart, centre to centre, and the bottom
    of the beam shall be 18 in (450 mm) above
    grade; or……..
(see next slide)                                     Inspiring and Shaping Excellence in Public Safety
B149.2-20 Propane Storage and Handling – Tanks
7.19.4.2 (Added wording underlined and bolded)

Guardrails used for the protection of a tank shall
be:
b) of the reinforced concrete barrier type,
    commonly referred to as the New Jersey
    Turnpike barrier, not less than 30 in (750 mm)
    in height. See Figure D.1 in Annex D for an
    illustration of a typical barrier such as Ontario
    Provincial Standard Drawing precast concrete
    barrier (OPSD-920.010 or, 911 series); and
c) the maximum spacing between the barriers
    shall not exceed 54 in (1380 mm).
                                                        Inspiring and Shaping Excellence in Public Safety
B149.2-20 Propane Storage and Handling – New Annexes
Annex O (normative)
Use of Non-Refillable Propane Cylinders in Laboratories/Classrooms in Schools,
Colleges and Universities
Note: This Annex is a mandatory part of the Code.
This new Annex provides requirements for small appliances, such as portable Bunsen burners,
when connected to non-refillable (“single trip”) cylinders, used for educational and
instructional purposes only, in accordance with the conditions described in the Annex.
• O.1 Scope/general requirements
• O.2 Classroom quantities
• O.3 Classroom/laboratory use
• O.4 Training and responsibilities
• O.5 Cylinder storage and removal                                  Inspiring and Shaping Excellence in Public Safety
B149.2-20 Propane Storage and Handling – New Annexes
Annex Q (informative)
Temporary use of cylinders at shows, exhibitions or other similar events.
This Annex is not a mandatory part of this Code.

This Annex is designed to be used in conjunction with:
   CSA B149.1-20 Annex M -Requirements for the operation of appliances at shows, exhibitions, or
   other similar events, which applies to appliances that
   a) are on display at shows, exhibitions, or other similar events; and
   b) are designed to be: used outdoors, or vented to the outdoors.
When we get back to having Home and Garden shows, vendors will be able to display and operate gas
appliances that would not normally be allowed to operate indoors, or indoors without venting. This
Annex goes further to allow these appliances on display to operate off a propane cylinder up to 20 lb.
capacity.
                                                                            Inspiring and Shaping Excellence in Public Safety
B149.2-20 Propane Storage and Handling – New Annexes
Annex R (informative)
Inspection and servicing of pressure relief devices on tanks
This Annex is not a mandatory part of this Code.

This Annex provides information on PRD requirements:
a) for visual inspection, not to exceed every 5 years.
b) for replacement on tanks greater than 2500 USWG, not to exceed every 10 years, and
c) for replacement on tanks 2500 USWG or less, not to exceed every 25 years.




                                                                    Inspiring and Shaping Excellence in Public Safety
Thank you for reviewing the first section of this
presentation of the substantial changes to B149.2-20
and the resulting changes to the Saskatchewan Code of
Practice to CSA B149.2-20

The next section of this presentation provides changes
to the Saskatchewan Code of Practice to CSA B149.2-20
resulting from recent experiences.
                                         Inspiring and Shaping Excellence in Public Safety
B149.2-20 Propane Storage and Handling Code




                    Saskatchewan Codes
                      of Practice 2020

                                      Inspiring and Shaping Excellence in Public Safety
B149.2-20 Propane Storage and Handling Code - Cylinders

6.5.2.6.3.2 (new SCOP for 2020 –but was a previous requirement)
At all retail propane cylinder exchange cabinets, and automated cylinder
exchange machines, a sign shall be prominently displayed and be worded as
follows: “TRANSPORT CYLINDERS SECURED IN AN UPRIGHT POSITION IN A
VENTILATED SPACE” in red lettering that is a minimum of 1 inch (25 mm) high on
a white background.

With the recent re-organizations to the national code, this requirement still exists in clause
7.12.10 for Filling Plants, but it is missing from the requirements for a Propane Exchange retailer.
The requirements for transportation of a full cylinder are the same regardless of how the
customer receives a full propane cylinder.


                                                                               Inspiring and Shaping Excellence in Public Safety
B149.2-20 Propane Storage and Handling Code - Cylinders

7.4.1 (new SCOP)
Subject to 7.4.2 to 7.4.4, and 7.5.2, each tank opening utilized for
propane flow shall be equipped with an excess-flow valve sized for
the application. Common practice is that the excess flow valve
setpoint should be at least 50% larger than the maximum flow rate
of the load to avoid nuisance trips.

To prevent services being installed without an excess flow valve when one is
required, and to provide guidance in sizing the excess flow valve’s rated
capacity.
                                                                Inspiring and Shaping Excellence in Public Safety
B149.2-20 Propane Storage and Handling Code - Cylinders
7.4.8.1 (new SCOP –adding wording underlined in bold)
Any line utilized for propane flow shall have a flow capacity to atmosphere
greater than the design flow rate of the excess-flow valve protecting the line. To
approximate a line’s propane flow capacity to atmosphere, the line shall have
a vapour flow capacity based on Annex A of CSA B149.1, or a liquid flow
capacity based on Appendix A of this SCOP, of at least 75% of the rated
capacity of the excess flow valve protecting the line.

B149.2 words this clause as the line needs to be large enough to exceed the excess-flow valve
rating (when broken). Alias, the excess-flow valve rating needs to be small enough that it trips.
Lines are sized according to a relatively small pressure drop. When a line breaks, the pressure
drop is 100% (to zero gauge pressure). A line sized for 3 USGPM will flow more than 4 USGPM
(excess-flow valve rating) when severed.
                                                                               Inspiring and Shaping Excellence in Public Safety
B149.2-20 Propane Storage and Handling
                                   Appendix A -Maximum capacity of
                                   Liquid Propane (in thousands of
                                   Btu/h) for copper tubing, or Schedule
                                   80 piping gravity fed from a propane
                                   tank (no pump) (new –added by
                                   popular demand)

                                   Flow rates shown in brackets (red italics)
                                   are considered too low to be protected by
                                   a single 4 USGPM excess flow valve
                                   mounted on the tank, per CSA B149.2-20
                                   SCOP 7.4.8.1, and shall not be considered
                                   for single line services to a single
                                   appliance.
                                                     Inspiring and Shaping Excellence in Public Safety
B149.2-20 Propane Storage and Handling Code - Tanks
Eliminated SCOP’s
7.10.4 Where end failure of horizontal storage tanks may endanger institutional or assembly
building, the tanks shall be placed with the longitudinal axis parallel to such property.
7.10.5 Propane motor fuel dispensers and storage tanks located on property occupied by
schools shall be located as the following;
  a) Minimum distance between filling plant tanks and educational facilities other than service
     buildings shall be 100 feet (30 m).
  b) Ends of storage tanks shall not face educational buildings.
  c) Vehicles being filled are to be parked at right angles to storage tank(s).


There is no supporting data available to support retaining these two SCOP requirements.


                                                                                  Inspiring and Shaping Excellence in Public Safety
Please help to stop the illegal filling of Single Trip Propane Cylinders!!!
                                     Advertised as:
                                     A Must-Have for Survivalists, Hikers, Outdoor
                                     Enthusiasts, Tailgaters, Campers, Hunters,
                                     Fishermen, Handymen and anyone that cooks
                                     on a small grill!
                                     The PRD on these cylinders is not designed for
                                     repeated loading and off-loading, and it cannot be
                                     replaced when it wears.
                                     Please help us to prevent a tragedy by discouraging
                                     this illegal practice!


                                    Complete with
                                    instructions on how to
                                    overfill the cylinder      Inspiring and Shaping Excellence in Public Safety
Thank you for reviewing this presentation of the substantial
changes to B149.2-20 and the changes to the Saskatchewan
Code of Practice to CSA B149.2-20
If you have any questions, it is likely that others have the same
question. Please contact your local gas inspector, or
                  Doug Hird, Senior Engineer
                     Gas Codes and Standards
                       doug.hird@tsask.ca

We will be posting on-line a running Q&A so no question goes
                         unanswered.
                                                 Inspiring and Shaping Excellence in Public Safety
