Wir benötigen Ihre Einwilligung zur Verwendung der einzelnen Daten, damit Sie unter anderem Informationen zu Ihren Interessen einsehen können. Klicken Sie auf "OK", um Ihre Zustimmung zu erteilen.
Standard Practice for Sampling of Gaseous Uranium Hexafluoride
Automatische name übersetzung:
Standard Praxis für Probenahme von gasförmige Uranhexafluorid
NORM herausgegeben am 1.1.2013
Bezeichnung normen: ASTM C1703-08(2013)
Anmerkung: UNGÜLTIG
Ausgabedatum normen: 1.1.2013
SKU: NS-12256
Zahl der Seiten: 5
Gewicht ca.: 15 g (0.03 Pfund)
Land: Amerikanische technische Norm
Kategorie: Technische Normen ASTM
Keywords:
bulk sampling, nuclear material, uranium hexafluoride, ICS Number Code 27.120.30 (Fissile materials and nuclear fuel technology)
Significance and Use | ||||||||||
5.1 Uranium hexafluoride is normally produced and handled in large (typically 1 to 14-ton) quantities and must, therefore, be characterized by reference to representative samples (see ISO/DIS 7195). The samples are used to determine compliance with the applicable commercial specifications C996 and C787. The quantities involved, physical properties, chemical reactivity, and hazardous nature of UF6 are such that for representative sampling, specially designed equipment must be used and operated in accordance with the most carefully controlled and stringent procedures. This practice can be used by UF5.2 The intention of this practice is to avoid liquid UF6 sampling once the cylinder has been filled. For safety reasons, manipulation of large quantities of liquid UF5.3 It is emphasized that this practice is not meant to address conventional or nuclear criticality safety issues. |
||||||||||
1. Scope | ||||||||||
1.1 This practice covers methods for withdrawing representative sample(s) of uranium hexafluoride (UF1.2 Since UF6 sampling is taken during the filling process, this practice does not address any special additional arrangements that may be agreed upon between the buyer and the seller when the sampled bulk material is being added to residues already present in a container (“heels recycle”). Such arrangements will be based on QA procedures such as traceability of cylinder origin (to prevent for example contamination with irradiated material). 1.3 If the receiving cylinder is purged after filling and sampling, special verifications must be performed by the user to verify the representativity of the sample(s). It is then expected that the results found on volatile impurities with gas phase sampling may be conservative. 1.4 This practice is only applicable when the transfer occurs in the gas phase. When the transfer is performed in the liquid phase, Practice C1052 should apply. This practice does not apply to gas sampling after the cylinder has been filled since the sample taken will not be representative of the cylinder. 1.5 The scope of this practice does not include provisions for preventing criticality incidents. 1.6 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 and health practices and determine the applicability of regulatory limitations prior to use. |
||||||||||
2. Referenced Documents | ||||||||||
|
Historisch
15.5.2011
Historisch
1.6.2011
Historisch
1.1.2012
Historisch
1.12.2008
Historisch
1.6.2011
Historisch
1.6.2009
Wollen Sie sich sicher sein, dass Sie nur die gültigen technischen Vorschriften verwenden?
Wir bieten Ihnen Lösungen, damit Sie immer nur die gültigen (aktuellen) legislativen Vorschriften verwenden könnten.
Brauchen Sie mehr Informationen? Sehen Sie sich diese Seite an.
Letzte Aktualisierung: 2024-12-23 (Zahl der Positionen: 2 217 157)
© Copyright 2024 NORMSERVIS s.r.o.