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Publications ANSI/CSA-B149.6-15

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ANSI/CSA-B149.6-15 - Code for digester gas, landfill gas, and biogas generation and utilization

Publication Year:

  • 2015

Total Pages:



  • CSA

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ANSI/CSA-B149.6-15 - Code for digester gas, landfill gas, and biogas generation and utilization

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Digester and landfill gases are widely used as fuel to produce electricity, drive pumps and fire boilers. It is crucial to understand the safety requirements as the migration of these gasses into buildings and other confined areas can pose the risk of explosion or asphyxiation.

The first edition of the bi-national ANSI/CSA-B149.6 - Code for Digester Gas, Landfill Gas, and Biogas Generation and Utilization was developed to help address these risks and serves as a key resource for workers who deal with the gasses across the United States and Canada.

ANSI/CSA-B149.6 applies to the operation and maintenance of digester gas and landfill gas systems and covers requirements for 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.

Why you Need to Know the 2015 Edition:

  • Greater emphasis on emergency pressure relief to help improve reliability and reduce risk.
  • New clauses for membrane gas holders for digester gas bring the standard in line with international best practices and help improve worker safety.
  • Updated requirements to reference and comply with Canadian and U.S. standards on underground piping, piping design & hazardous areas.
  • Updated annexes feature more detailed information on controls for boilers, waste gas burners, engines and incinerators making it easier for Authorities Having Jurisdiction (AHJs) to adopt.
  • Features greater clarification on inspection points & revised installation requirements for specific types of appliances and equipment.
  • Includes expanded clauses for valves, regulators and manometers.

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QST REG No R1006017360