ASME N511:2017 pdf download

ASME N511:2017 pdf download.In-Service Testing of Nuclear Air-Treatment, Heating, Ventilating, and Air-Conditioning Systems
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
ThepurposeofthisStandardistoproviderequirements 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 functions.
1.3 Applicability
ThisStandardappliestothein-servicetestingofnuclear air-treatment, heating, ventilating, and air-conditioning systems that have been designed, built, and acceptance tested in accordance with ASME AG-1. Sections of this Standard may be used for technical guidance when testing air-treatment, heating, ventilating, and air-condi- tioning systems designed and built to 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 ofone test influence the perfor- mance 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, B, C, and D provide addi- tional information and guidance.
1.5  Definitions
These definitions supplement those listed in ASME AG- 1, Article AA-1000. abnormal incident: any event or condition that may adversely affect the function ofthe nuclear air-treatment, heating, ventilating, and air-conditioning systems. acceptable preconditioning: the alteration, variation, manipulation, or adjustment of the physical condition of a component before in-service testing for the purpose of protecting personnel or equipment or meeting the manufacturer’s recommendations. This may include routine and scheduled maintenance for optimum equipment and system performance.Preconditioning for purposes of personnel protection or equipment preservation should outweigh the benefits gained by testing only in the as-found condition. This preconditioning may be based on the equipment manu- facturer’s recommendations or industry-wide operating experience to enhance equipment and personnel safety. This preconditioning should be evaluated and documented prior to the in-service test. acceptance test: a test made upon completion of fabrica- tion, installation, repair, or modification ofa unit, compo- nent, or part to verify to the user or owner that the item meets specified requirements. adsorbent: a solid having the ability to concentrate other substances on its surface. adsorber: a device or vessel containing adsorbent. adsorberbank orfilter bank: one or more filters or adsor- bers secured in a single mounting frame, or one or more side-by-sidepanelscontainingpouredorpackedair-treat- ment media, confined within the perimeter of a duct, plenum, or vault cross section, sometimes referred to as a stage. aerosol: a stable suspension ofparticles, solid or liquid, in air. as-foundcondition: the condition ofa componentbetween in-service tests without preconditioning. challenge: to expose a filter, adsorber, or other air-treat- ment device to an aerosol or gas ofknown characteristics under specified conditions for the purpose of testing. challenge aerosol: an aerosol used forin-place leaktesting of installed HEPA filter systems. NOTE: Thepolydispersedaerosolusedforin-placeleaktestingof systems differs in size from the 0.3 μm monodisperse dioctyl phthalate (DOP) aerosol used for efficiency testing ofindividual HEPAfilters bymanufacturers.Forpotentialsubstitutes forDOP, reference ASME AG-1, Article TA-2000,preconditioning: the modification, manipulation, or adjustment of a component performed just prior to in- service tests that could affect the results of the in- service test. This may include activities such as cycling, cleaning, lubricating, agitating, or other specific mainte- nance or operational activities that may be performed prior to or during in-service testing that could affect the ability to determine component degradation. This excludes normal scheduled routine maintenance to keep optimum component performance. pressure, maximum operating: the maximum pressure the system components will be subjected to while performing their function, including the allowable pressure during abnormal operating conditions, that will not physically damage the system or component (e.g., sudden closure of dampers or registers). pressure, operating: the pressure that corresponds to the normal design operating mode of the system. This pres- sure is less than or equal to the maximum operating pressure. pressure, structural capability: the pressure, including transients, that verifies the component or system can be safely operated without permanent distortion. reference value: one or more test parameters that are measured, observed, or determined when the equipment or system is known to be operating acceptably within its design basis limits.