ASME N510-2007 pdf free download.Testing of Nuclear Air Treatment Systems.
opcnitiPig cick: a period of time, defined by the owner. not to exceed 24 months.
R4rigerani-11: challenge gas trichloromonofluoromethane (K-Il).
Ref ri genres-i 12: challenge gas tetrachlorodifluoromethane (R-l12 or R-112A).
lest Issendar: the physical limit component, system, or device being subjected to a leakage test as defined in speci& procedures.
lest omiskr: a specially designed sample holder containing sufficient adsorbent for specific laboratory tests that can be removed from an adsorber hank, without disturbing the remainder of the adsorber, to provide representative samples for bboratory testing. A full- sized Type H adsorber tray may be removed and used to obtain material for specific Laboratory tests provided that an in-place leak test is performed after replacement.
less program: a schedule that specifies tests and the sequence of tests to be made for the evaluation of a total air- or gas-cleaning system.
4 GENERAL
This Standard delineates the requirements for in-service testing of nuclear air-cleaning systems. Acceptance testing is covered in ASME AG-I. A list of the required in-service tests and the minimum performance frequency of these tests are shown in Table I.
4.1 Test Procedure
Procedures shalt be prepared for each required test, based upon the requirements of this Standard.
4.2 Personnel
Only persons who have demonstrated the competence to satisfactorily perform the specific tests in question as evidenced by experience and training shall perform tests. Personnel shall be certified in accordance with ASME NQA-I or ANS 3,1 and with the owner’s design specifications and quality assurance program.
4,3 Instrumentation: Permanent
Permanent instrumentation used in the performance of tests specified iii this Standard shall meet the accuracy requirements specified in Table 2 and shall be calibrated in accordance with the owner’s design specifications and quality assurance program.
4.4 InstrumentatIon: Portable
l’ortahle instrumentation used in the performance of the tests specified In this Standard shall meet the accuracy requirements specified in Table 2 and shall be calibrated in accordance with the owner’s design specifications and quality assurance program.
5 VISUAL INSPECTION
5.1 Purpose
A visual inspection of the air treatment system, as specified by the test program. shall be made in conjunction with each test series to identify visual deficiencies prior to commencing tests. In addition, this inspection may be used to verify that the system design and construction are in accordance with ASME N509.
5.2 Summary of Method
Visual inspection shall be performed under a combination of background light plus supplementary light that provides adequate illumination of the surface to be inspected.
5.3 Prerequisites
Construction, modification, and/or repairs shall be completed to the extent of supporting the test series.
5.4 Apparatus (Equipment)
Supplementary light providing adequate illumination of the surface to be inspected is required.
5.5 Procedure
Visual inspections shall be conducted in accordonce with ASME N511. Whenever “unacceptable” is used, it is intended to mean any damage or condition that would impair the ability of the item to perform its function.
5.6 Acceptance Criteria
Inspection results are acceptable when there are no indications of improper installation, physical damage, structural distress, or degradation that would impair the ability of the system to perform its intended function.
5.7 Report
A written report shall be prepared in accordance with section 14. Items identified as unacceptable should be further documented in the comment section of the test report to assist the owner in preparation of corrective
action.
6 DUCT AND HOUSING LEAK TEST
6.1 Purpose
These tests are used to verily the leak tightness of the housings and ducts.
6.2 Summary of Method
The ductwork or housing is pressurized to determine leak tightness. The leakage shall be determined using either the pressure decay or constant pressure method.
6.3 Prerequisites
Construction, modifications, and repairs affecting the test boundary shall be complete. All electrical, piping.