1Standard Test Method for Uranium byIron (Ⅱ)Reduction in Phosphoric Acid Followed by Chromi-um(VI)Titration in the Presence of Vanadium. ASTM C 1267-00 .
2.Nuclear fuel technology-Determi-nation of uranium in solutions,uranium hexafluoride and sol-ids,Part 1:Iron(Ⅱ)reduction/potassium dichromate oxida-tion titrimetric method[].ISO -:(E).
