• Z21.40.4-1996 (R2002)/CGA 2.94-M96
• Z21.40.4a-1998 (R2002)/CGA 2.94a-M98

Boilers

Gas-Fired Low Pressure Steam and Hot Water Boilers

• Z21.13-2004/CSA 4.9-2004
• Z21.13a-2005/CSA 4.9a-2005

Camping Equipment

Portable Type Gas Camp Heaters

• Z21.63-2000 (R2005)/CSA 11.3-2000
• Z21.63a-2001 (R2005)/CSA 11.3a-2001
• Z21.63b-2003 (R2005)/CSA 11.3b-2003

• Z21.72-2000 (R2005)/CSA 11.2-2000
• Z21.72a-2001 (R2005)/CSA 11.2a-2001
• Z21.72b-2002 (R2005)/CSA 11.2b-2002

• Z21.73-2000 (R2005)/CSA 11.1-2000
• Z21.73a-2001 (R2005)/CSA 11.1a-2001
• Z21.73b-2002 (R2005)/CSA 11.1b-2002

• Z21.74-1992 (R1999)

Central Furnaces

Gas-Fired Central Furnaces

• Z21.47-2003/CSA 2.3-2003
• Z21.47a-2004/CSA 2.3a-2004
• Z21.47b-2006/CSA 2.3b-2006

Clothes Dryers

Gas Clothes Dryers, Volume I, Type 1, Clothes Dryers

• Z21.5.1-2006/CSA 7.1-2006

• Z21.5.2-2005/CSA 7.2-2005
• Z21.5.2a-2006/CSA 7.2a-2006

Commercial Dishwashers

Commercial Dishwashers

• Z83.21-2005/CSA C22.2 NO. 168-2005

Construction Heaters

Gas-Fired Construction Heaters

• Z83.7-2000 (R2005)/CSA 2.14-2000

Decorative Appliances

Vented Gas Fireplaces

• Z21.50-2003/CSA 2.22-2003
• Z21.50a-2003/CSA 2.22a-2003
• Z21.50b-2005/CSA 2.22b-2005

• Z21.88-2005/CSA 2.33-2005

• Z21.60-2003/CGA 2.26-2003
• Z21.60a-2003/CSA 2.26a-2003
• Z21.60b-2004/CSA 2.26b-2004

• Z21.84-2002
• Z21.84a-2003
• Z21.84b-2004

Food Service Equipment

Gas Food Service Equipment - Ranges and Unit Boilers, Baking and Roasting Ovens, Deep Fat Fryers, Counter Appliances, Kettles, Steam Cookers and Steam Generators

• Z83.11-2002/CSA 1.8-2002
• Z83.11a-2004/CSA 1.8a-2004
• Z83.11b-2006/CSA 1.8b-2006

Heavy Duty Heaters

Gas-Fired Duct Furnaces and Unit Heaters

• Z83.8-2006/CSA 2.6-2006

Household Cooking Appliances

Household Cooking Gas Appliances

• Z21.1-2005

Illuminating Appliances

Gas-Fired Illuminating Appliances

• Z21.42-1993 (R2002)
• Z21.42a-2004

Industrial Air Heaters

Non-Recirculating Direct Gas-Fired Industrial Air Heaters

• Z83.4-2003/CSA 3.7-2003
• Z83.4a-2004/CSA 3.7a-2004
• Z83.4b-2006/CSA 3.7b-2006

• Z83.18-2004
• Z83.18a-2005

Infrared Heaters

Gas-Fired High-Intensity Infrared Heaters

• Z83.19-2001 (R2005)/CSA 2.35-2001
• Z83.19a-2002 (R2005)/CSA 2.35a-2002

• Z83.20-2001 (R2005)/CSA 2.34-2001
• Z83.20a-2003 (R2005)/CSA 2.34a-2003
• Z83.20b-2004 (R2005)/CSA 2.34b-2004

Outdoor Cooking Appliances

Outdoor Cooking Gas Appliances

• Z21.58-2005/CGA 1.6-2005

• Z21.89-2004/CSA 1.18-2004
• Z21.89a-2006/CSA 1.18a-2006

Pool Heaters

Gas-Fired Pool Heaters

• Z21.56-2006/CSA 4.7-2006

Recreational Vehicle Cooking Appliances

Recreational Vehicle Cooking Gas Appliances

• Z21.57-2005

Refrigerators

Refrigerators Using Gas Fuel

• Z21.19-2002/CSA 1.4-2002

Room Heaters

Vented Gas-Fired Space Heating Appliances

• Z21.86-2004/CSA 2.32-2004
• Z21.86a-2005/CSA 2.32a-2005

• Z21.11.2-2002
• Z21.11.2a-2003
• Z21.11.2b-2004

• Z21.91-2001 (R2005)
• Z21.91a-2002 (R2005)
• Z21.91b-2004 (R2005)

• Z21.76-1994 (R2000)
• Z21.76a-1996 (R2000)
• Z21.76b-1997 (R2000)

Toilets

Gas-Fired Toilets

• Z21.61-1983 (R1996)

Water Heaters

Gas Water Heaters, Volume I, Storage Water Heaters with Input Ratings of 75,000 Btu Per Hour or Less

• Z21.10.1-2004/CSA 4.1-2004
• Z21.10.1a-2006/CSA 4.1a-2006
• Z21.10.1b-2006/CSA 4.1b-2006

• Z21.10.3-2004/CSA 4.3-2004