ANSI/ASHRAE 62.1-2019: Ventilation for Acceptable Indoor Air Quality
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ANSI/ASHRAE Standard 62.1-2019: Ventilation for Acceptable Indoor Air Quality establishes minimum requirements for ventilation system design, installation, and maintenance in commercial and institutional buildings. This standard is a foundational reference for achieving acceptable indoor air quality (IAQ) and reducing health risks associated with poor ventilation.
Highlights:
- Updated Ventilation Rate Procedure with enhanced zone-level calculation methods
- Revised Natural Ventilation Procedure, including outdoor air quality and mechanical integration
- Prohibits use of ozone-generating air-cleaning devices
- Requires humidity control using dew point rather than relative humidity
- Separates patient care areas now governed under ASHRAE/ASHE Standard 170
- Clarifies definitions for spaces, ventilation zones, and contaminant sources
- Outlines requirements for design documentation, commissioning, and IAQ performance testing
- Includes appendices with ventilation rate rationale, IAQ procedures, and engineering tools
Who It’s For:
A critical reference for mechanical engineers, HVAC designers, facility managers, and code officials involved in ensuring compliant ventilation design and indoor air quality performance.
ASHRAE-62.1-2019
ANSI/ASHRAE Standard 62.1-2019: Ventilation for Acceptable Indoor Air Quality establishes minimum requirements for ventilation system design, installation, and maintenance in commercial and institutional buildings. This standard is a foundational reference for achieving acceptable indoor air quality (IAQ) and reducing health risks associated with poor ventilation.
Highlights:
- Updated Ventilation Rate Procedure with enhanced zone-level calculation methods
- Revised Natural Ventilation Procedure, including outdoor air quality and mechanical integration
- Prohibits use of ozone-generating air-cleaning devices
- Requires humidity control using dew point rather than relative humidity
- Separates patient care areas now governed under ASHRAE/ASHE Standard 170
- Clarifies definitions for spaces, ventilation zones, and contaminant sources
- Outlines requirements for design documentation, commissioning, and IAQ performance testing
- Includes appendices with ventilation rate rationale, IAQ procedures, and engineering tools
Who It’s For:
A critical reference for mechanical engineers, HVAC designers, facility managers, and code officials involved in ensuring compliant ventilation design and indoor air quality performance.
ASHRAE-62.1-2019
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ASME B16.5-2020
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Product Summary:
ASME B16.5-2020 defines the requirements for pipe flanges and flanged fittings in sizes NPS ½ through NPS 24, covering pressure–temperature ratings, dimensions, tolerances, materials, and testing. It applies to components used in bolted flange joints made from cast, forged, or plate materials in industrial piping systems.
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- Dimensional standards for weld neck, blind, reducing, and other flange types
- Specifications for bolting materials, gaskets, and flange assembly practices
- Manufacturing tolerances and permanent marking requirements
- Material listings with corresponding ASTM designations for forgings, castings, and plates
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Highlights:
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- Design criteria for internal pressure, sustained loads, displacement strains, and occasional loads
- Construction requirements including welding, brazing, bending, assembly, and material specifications
- Mandatory rules for examination, testing, inspection, and leak testing procedures
- Stress range reduction factors, flexibility analysis, and allowable stress values by material and temperature
- Qualification requirements for personnel, procedures, and fabrication documentation
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