ANSI/ASHRAE 193-2010 (R2024): HVAC Equipment Airtightness
An airtight building envelope and HVAC ducts result in a more precise ventilation system that can provide the correct amount of fresh air. When there…
CSA/ANSI Z21.21-23/CSA 6.5-2023: Automatic Valves
Keeping the flow of oil and gas in pipelines is a monumental task, requiring reliable equipment like gas valves. Without gas valves, the oil and…