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Standard Test Method for Uranium in Presence of Plutonium by Iron(II) Reduction in Phosphoric Acid Followed by Chromium(VI) Titration
Automaticky preložený názov:
Štandardná skúšobná metóda pre uránu v prítomnosti plutónia železa (II) Zníženie v kyseline fosforečnej Nasledoval chrómu (VI) Titračný
NORMA vydaná dňa 1.6.2014
Označenie normy: ASTM C1204-14
Poznámka: NEPLATNÁ
Dátum vydania normy: 1.6.2014
Kód tovaru: NS-10027
Počet strán: 9
Približná hmotnosť: 27 g (0.06 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
Keywords:
chromium titration, Davies and Gray titration, mixed oxide (MOX), modified Davies and Gray titration, uranium, uranium in plutonium, ICS Number Code 27.120.30 (Fissile materials and nuclear fuel technology)
Significance and Use | ||||||
4.1 Factors governing selection of a method for the determination of uranium include available quantity of sample, sample purity, desired level of reliability, and equipment availability. 4.2 This test method is suitable for samples between 20 to 300 mg of uranium, is applicable to fast breeder reactor (FBR)-mixed oxides having a uranium to plutonium ratio of 2.5 and greater, is tolerant towards most metallic impurity elements usually specified for FBR-mixed oxide fuel, and uses no special equipment. 4.3 The ruggedness of the titration method has been studied for both the volumetric (6) and the weight (7) titration of uranium with dichromate. |
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1. Scope | ||||||
1.1 This test method covers unirradiated uranium-plutonium mixed oxide having a uranium to plutonium ratio of 2.5 and greater. The presence of larger amounts of plutonium (Pu) that give lower uranium to plutonium ratios may give low analysis results for uranium (U) 1.2 The amount of uranium determined in the data presented in Section 12 was 20 to 50 mg. However, this test method, as stated, contains iron in excess of that needed to reduce the combined quantities of uranium and plutonium in a solution containing 300 mg of uranium with uranium to plutonium ratios greater than or equal to 2.5. Solutions containing up to 300 mg uranium with uranium to plutonium ratios greater than or equal to 2.5 have been analyzed 1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.4 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. For specific hazard statements, see Section 8. |
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2. Referenced Documents | ||||||
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