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ASTM E1552-08
Standard Test Method for Determining Hafnium in Zirconium and Zirconium Alloys By Direct Current Plasma´Atomic Emission Spectrometry
Automaticky přeložený název:
Standardní zkušební metoda pro stanovení hafnia v zirkonu a slitiny zirkonia stejnosměrným proudem Plasma'Atomic emisní spektrometrie
NORMA vydána dne 15.7.2008
Informace o normě:
Označení normy: ASTM E1552-08
Poznámka: NEPLATNÁ
Datum vydání normy: 15.7.2008
Kód zboží: NS-42159
Počet stran: 3
Přibližná hmotnost: 9 g (0.02 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM
Anotace textu normy ASTM E1552-08 :
Keywords:
d-c plasma, hafnium, zirconium, Argon plasma spectrometry/spectroscopy, D-C plasma spectrometers, Hafnium content, Zirconium/zirconium alloys--nonnuclear applications, ICS Number Code 77.120.99 (Other non-ferrous metals and their alloys)
Doplňující informace
| Significance and Use | ||||||||||||||||||||||||||||||||||||||
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When zirconium materials are used in nuclear applications, it is necessary that hafnium, a neutron absorber, be present only at very low concentrations. This test method is useful in testing materials for compliance with the compositional requirements as given in Specifications B 349/B 349M, B 350/B 350M, B 351/B 351M, B 352/B 352M, B 353, B 493, B 494/B 494M, B 495, B 523/B 523M, B 550/B 550M, B 551/B 551M, B 653/B 653M, B 658/B 658M, B 752, and B 811. |
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| 1. Scope | ||||||||||||||||||||||||||||||||||||||
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1.1 This test method covers the determination of hafnium in zirconium and zirconium alloys in concentrations greater than 0.003 %. 1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.3 This standard does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Specific precautionary statements are given in Section 8. |
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| 2. Referenced Documents | ||||||||||||||||||||||||||||||||||||||
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