Refrigerants & Environmental Regulations Flashcards

What is the maximum allowable refrigerant leak rate under Canadian ODSHAR for commercial refrigeration systems containing more than 10 kg of refrigerant?

Answer: 35% of total charge per year, with required repair within 30 days of detection

Under ODSHAR, systems with more than 10 kg of refrigerant that leak 35% or more of their charge in a 12-month period trigger mandatory reporting and repair requirements.

Which TSSA (Technical Standards and Safety Authority) designation is relevant for refrigeration and air conditioning mechanics in Ontario?

Answer: Refrigeration Operating Engineer

TSSA regulates Refrigeration Operating Engineers in Ontario for stationary refrigeration plants, separate from the Red Seal 313A trade qualification which covers installation and service technicians.

What refrigerant cylinder colour is standardized in Canada for R-410A?

Answer: Rose (pink/light red)

R-410A cylinders are standardized with a rose (pinkish-red) colour coding in North America, including Canada, to allow rapid identification.

What does the SNAP (Significant New Alternatives Policy) program represent in the context of Canadian refrigerant regulations?

Answer: A U.S. EPA program that Canada references for guidance on acceptable refrigerant substitutes

SNAP is a U.S. EPA program listing acceptable and unacceptable substitutes for ODS; Canadian regulators and industry often reference SNAP listings when evaluating new refrigerant alternatives, though Canada's own ODSHAR is the binding regulation.

When recovering refrigerant from a system in Canada, what equipment standard must the recovery machine meet?

Answer: UL 1963 / ARI 740 standard for refrigerant recovery/recycling equipment

Recovery equipment used in Canada must meet UL 1963 / ARI 740 (now AHRI 740) standards, which specify performance requirements for refrigerant recovery and recycling machines.

What is the purpose of the 'refrigerant log' required under Canadian ODSHAR for large systems?

Answer: To document all refrigerant additions, removals, and leak checks to track charge losses over time

ODSHAR requires operators of systems containing prescribed quantities of refrigerant to maintain a refrigerant log recording all additions, removals, and leak inspection results to demonstrate compliance with leak rate limits.