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ASTM F1373-93(2020)
Standard Test Method for Determination of Cycle Life of Automatic Valves for Gas Distribution System Components (Withdrawn 2023)
Přeložit název
NORMA vydána dne 15.4.2020
Informace o normě:
Označení normy: ASTM F1373-93(2020)
Poznámka: NEPLATNÁ
Datum vydání normy: 15.4.2020
Kód zboží: NS-993024
Počet stran: 5
Přibližná hmotnost: 15 g (0.03 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM
Kategorie - podobné normy:
Anotace textu normy ASTM F1373-93(2020) :
Keywords:
components, contamination, gas distribution components, life cycle testing, semiconductor processing, valves,, ICS Number Code 23.060.20 (Ball and plug valves),23.060.10 (Globe valves)
Doplňující informace
| Significance and Use |
|
4.1 The purpose of this test method is to define a procedure for testing components being considered for installation into a high-purity gas distribution system. Application of this test method is expected to yield comparable data among components tested for the purposes of qualification for this installation. |
| 1. Scope |
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1.1 This test method covers the testing of automatic valves for cycle life utilizing static, no-flow conditions. This no-flow condition is felt to be a realistic test to determine the valve's cycle life. 1.2 This test method applies to automatically operated valves. It is intended to measure the cycle life of the valve itself including the seat and body sealing. It does not include cycle testing of the actuator. Testing must include both pressure testing and helium leak testing and must include vacuum test conditions when appropriate. This test method may be applied to a broad range of valve sizes. 1.3 Limitations: 1.3.1 This test is not designed to evaluate the performance of the actuator. This test method addresses the gas system contamination aspects of the valve performance, that is, seat and body leakage and diaphragm or bellows failure. If the actuator fails during the evaluation, the valve is deemed as a failure. 1.3.2 While the requirements of a valve's performance might include items such as particulate generation levels, this test method only attempts to evaluate cycle life and performance degradation as they relate to the ability of the valve to operate and shut off flow. 1.3.3 This test method is written with the assumption that the operator understands the use of the apparatus at a level equivalent to six months of experience. 1.4 The values stated in SI units are to be regarded as the standard. The inch-pound units given in parentheses are for information only. 1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. |
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