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B149.6-11 - Code for digester gas and landfill gas installations
B149.3-10 (R2014) - Code for the field approval of fuel-related components on appliances and equipment
ANSI/IAS NGV 4.4-99/CSA 12.54-M99 (R2014) - Breakaway Devices for Natural Gas Dispensing Hoses and Systems
ANSI/IAS NGV 4.6-99/CSA 12.56-M99 (R2014) - Manually Operated Valves for Natural Gas Dispensing Systems
Digester and landfill gases are widely used as fuel to produce electricity, drive pumps and fire boilers. The migration of these gasses into building and other confined areas can potentially create explosion and asphyxiation hazards. The B149.6-11 - Code for Digester Gas and Landfill Gas Installations applies to the operation and maintenance of the digester gas and landfill gas systems regarding the production, handling, storage, and utilization of these gasses in newly constructed wastewater treatment plants and landfill sites. The Code also applies to additions and upgrades of existing systems.