ASME 511 pdf free download
ASME 511 pdf free download In-Service Testing of Nuclear Air Treatment, Heating, Ventilating, and Air-Conditioning Systems
1 INTRODUCTION
1.1 Scope This Standard covers the requirements for in-service testing of nuclear safety-related air treatment, heating, ventilating, and air-conditioning systems in nuclear facilities.
1.2 Purpose The purpose of this Standard is to provide require- ments for in-service testing, the results of which are used to verify that the nuclear air treatment, heating, ventilating, and air-conditioning systems perform their intended function.
1.3 Applicability This Standard applies to the in-service testing of nuclear air treatment, heating, ventilating, and air-con- ditioning systems that have been designed, built, and acceptance tested in accordance with ASME AG-1. Sections ofthis Standard may be used for technical guid- ance when testing air treatment, heating, ventilating, and air-conditioningsystems designedand builtto other standards.
1.4 Use of This Standard This Standard provides a basis for the development of test programs and does not include acceptance criteria, except where the results of one test influence the per- formance of other tests. Based on the system design and its function(s), the owner shall develop a test program and acceptance criteria. Nonmandatory Appendices A through C provide additional information and guidance.
1.5 Definitions The definitions provided in this section supplement those listed in ASME AG-1, Article AA-1000. abnormal incident: any event or condition that may adversely affect the function of the nuclear air treatment, heating, ventilating, and air-conditioning systems. acceptance test: a test made upon completion of fabrica- tion, installation, repair, or modification of a unit, com- ponent, or part to verify to the user or owner that the item meets specified requirements.
adsorbent: a solid having the ability to concentrate othersubstances on its surface.
adsorber: a device or vessel containing adsorbent.
adsorber bank or filter bank: one or more filters or adsorb-ers secured in a single mounting frame, or one or moreside by side panels containing poured or packed airtreatment media,confined within the perimeter of aduct, plenum, or vault cross section, sometimes referredto as a stage.
aerosol: a stable suspension of particles,solid or liquid,in air.
challenge: to expose a filter, adsorber, or other air treat-ment device to an aerosol or gas of known characteris-tics, under specified conditions, for the purpose oftesting.
challenge aerosol: an aerosol used for in-place leak testingof installed HEPA filter systems.
NOTE:The polydispersed aerosol used for in-place leak testingof systems differs in size from the 0.3 um monodisperse DOPaerosol used for efficiency testing of individual HEPA filters bymanufacturers. For potential substitutes for DOP, reference ASMEAG-1,Article TA-2000.
challenge gas: a gas of known characteristics used for in-place testing of adsorbers.
HEPA filter (high-efficiency particulate air filter): a dispos-able, extended media, dry type filter enclosed in a rigidcasing that exhibits a minimum efficiency of 99.97%when tested with an essentially monodisperse 0.3 umtest aerosol.
in-service test: a test to determine the operational readi-ness of a system or component.
pressure, aximum operating: the maximum pressure thesystem components will be subjected to while per-forming their function, including the allowable pressureduring abnormal operating conditions, that will notphysically damage the system or component (e.g., sud-den closure of dampers or registers).
pressure, operating: the pressure that corresponds to thenormal design operating mode of the system.This pres-sure is less than or equal to the maximum operatingpressure.
pressure,structural capability: the pressure, includingtransients, that verifies the component or system can besafely operated without permanent distortion.
reference value: one or more test parameters that are mea-sured, observed, or determined when the equipment orsystem is known to be operating acceptably within itsdesign basis limits.
system: an assembly of components, including associatedinstruments and controls, required to perform the func-tion of a nuclear air treatment, heating, ventilating, andair-conditioning system.
test boundary: the physical limits of the component, sys-tem, or device being subjected to a specified test.
test canister: a specially designed sample holder con-taining adsorbent for laboratory tests that can beremoved from an adsorber bank,without disturbingthe remainder of the adsorber, to provide representativesamples for laboratory testing.
test program: a documented plan for in-service testingbased upon system design specifications and functionalrequirements, including required tests,test frequency,detailed procedures, and acceptance criteria.
REFERENCES
The following references supplement this Standardand are a part of it to the extent indicated in the text.The issue date of the referenced document noted belowshall be in effect. If no date is listed, the latest editionand addenda are applicable.
