ASME N510 pdf download.Testing of Nuclear Air Treatment Systems.
operating cycle: a period of time, defined by the owner, not to exceed 24 months.
Refrigerant-li: challenge gas trichloromonofluoromethane (R-11).
Refrigerant-i 12: challenge gas tetrachiorod i fluoromethane (R-112 or R-112A).
test boundary: the physical limit component, system, or device being subjected to a leakage test as defined in specific procedures.
test canister: a specially designed sample holder containing sufficient adsorbent for specific laboratory tests that can be removed from an adsorber bank, without disturbing the remainder of the adsorber, to provide representative samples for laboratory testing. A full- sized Type II 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.
test 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 1.
4.1 Test Procedure
Procedures shall 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 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.
4.4 Instrumentation: Portable
Portable 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.
NOTE: The pressure decay method may not be adequate to identify bypass leakage if the duct leakage acceptance criterion allows a higher leak rate for the duct than the damper criterion. When the challenge aerosol test is used, the duct size and expected leakage range must be considered for the purpose of estimating aerosol transit time from the damper boundary to the downstream test port location.
11.3 Prerequisites
For a challenge aerosol or gas test, the injection and sample points shall be qualified per ASME AG-i.
11.4 Apparatus
11.4.1 For a challenge aerosol or gas leak test, the equipment shall be listed in section 9 or 10, respectively.
11.4.2 For a pressure decay leak test, the equipment shall be listed iii section 6.
11.5 Procedure
11.5.1 For a challenge aerosol or gas leak test, the procedure shall be in accordance with section 9 or 10,
respectively.
11.5.2 For a pressure decay leak test, the procedure shall be in accordance with section 6.
11.6 Acceptance Criteria
The leakage shall be within the criteria specified in the test program or owner’s design specifications.
NOTE: The leakage value for bypass shall be added to the leak rate result measured in section 9 or 10, or both, if the bypass is not challenged when challenging the filter banks.
11.7 Report
A written report shall be prepared in accordance with section 14.
12 AIR HEATER PERFORMANCE TEST
12.1 Purpose
This test is used to verify that the nuclear air treatment system air heater performance, at the design flow rate (±10%), meets the test program or owner’s design spedfica tions.
12.2 Summary of Method
Power-on electrical (voltage and amperage measurements) and mechanical tests shall be performed to verify correct operation and condition of the air heater.
12.3 Prerequisites
Visual inspection of the heater shall be completed.
12.4 Apparatus
(a) clamp-on ammeter and voltmeter
(b) temperature-indicating device.
ASME N510 pdf download
