ASME AG-1–2009 pdf download.Code on Nuclear Air and Gas Treatment.
AA-1100 SCOPE This Code provides requirements for the performance, design, construction, acceptance testing, and quality assurance of equipment used as components in nuclear safety-related air and gas treatment systems in nuclear facilities. AA-1110 PURPOSE The purpose of this Code is to ensure that equipment used in nuclear facilities for nuclear safety-related air and gas treatment systems is acceptable in all aspects of performance, design, construction, and testing. AA-1120 APPLICABILITY This Code applies only to individual components in a system. This Code does not cover any functional system design requirements or sizing of complete sys- tems, or any operating characteristics of these systems. The responsibility for meeting each requirement of this Code shall be assigned to the Owner or assigned designee. AA-1130 DEFINITIONS AND TERMS Each Code section shall delineate the definitions and terms unique to that section. Definitions that have common application are listed in this section. acceptance test: a test made upon completion of fabrica- tion, installation, repair, or modification of a unit, component, or part to verify to the user or Owner that the item meets specified requirements. active component: any component that must perform a mechanical motion or change of state during the course of accomplishing a nuclear safety-related function.
air density: 0.075 lb /ft 3 (1.201 kg /m 3 ) for standard air. This corresponds to air at a pressure of 29.92 in. Hg (760 mm Hg) at a temperature of 69.8°F (21°C) with a specific volume of 13.33 ft 3 /lb (0.832 m 3 /kg). airflow (ACFM, SCFM, ACMS, SCMS): expressed in terms of CFM (cubic feet of air per minute). ACFM is a cubic foot of air with a density at actual existing conditions. SCFM (standard CFM) is a cubic foot of air with a standard density. ACMS and SCMS correspondingly apply to cubic meters per second under actual and standard conditions. allowable deflection (d all ): the deflection resulting from each of the component loading conditions defined in AA-4212. allowable stress value (S): the maximum stress limit to be used in the design. assembly: two or more devices sharing a common mounting or supporting structure. broadband response spectrum: a response spectrum that describes the motion indicating that multiple frequency excitation predominates. Certificate of Compliance: a written statement, signed by a qualified party, attesting that the items or services are in accordance with specified requirements and ac- companied by additional information to substantiate the statement. Certificate ofConformance: a written statement, signed by a qualified party, certifying that items or services comply with specific requirements. clean air system: an air cleaning system that is designed to maintain a definite level of air cleanliness within an enclosed working area. component: a constituent of any referenced item. For example, an adsorber is a component of an air cleaning unit. An air cleaning unit and ducts are components of the air cleaning system.
duct: an air or gas path enclosure. effective width: a reduced width of plate that is effective in carrying loads after the local buckling stress has been exceeded. These effective plate regions are adjacent to stiffeners, or at corners where two or more joined plates stiffen one another. Forty to fifty plate thicknesses are normally considered as effective in acting with the stiffeners. Engineer: as used in this document, the Engineer is the individual or organization designated by the Owner to be responsible for the original design or modification to the original design of air and gas treatment systems, and is responsible for determining the performance parameters for the system. Engineered Safety Feature (ESF): a nuclear air treatment system, HVAC system, gas processing system, or a component that serves to control and limit the conse- quences of releases of energy and radioactivity in the event of occurrences as described in ANSI/ANS 51.1 and 52.1. equipment: all HVAC components including ductwork, housings, plenums, fans, cleaning and refrigeration de- vices, dampers, and structural supports. Fabricator: as used in this Code, this term refers to the organization that assembles, forms, or constructs components for use in air or gas treatment systems for the owner or his designee. Fabricators receive materials for fabrication from a Material Supplier and Material Manufacturer.