ASTM C1343-16
Standard Test Method for Determination of Low Concentrations of Uranium in Oils and Organic Liquids by X-ray Fluorescence

Standard No.

ASTM C1343-16

Release Date

2016

Published By

American Society for Testing and Materials (ASTM)

Latest

ASTM C1343-16

Scope

5.1 This test method is applicable to organic solutions containing 20 to 2000 μg uranium per mL of solution presented to the spectrometer for the solution techniques or 200 to 508201;000 μg uranium per g using the fused pellet technique.

5.2 Either wavelength-dispersive or energy-dispersive XRF systems may be used, provided that the software accompanying the system is able to accommodate the use of internal standards.

1.1 This test method covers the steps necessary for the preparation and analysis by X-ray fluorescence (XRF) of oils and organic solutions containing uranium. Two different preparation techniques are described.

1.2 The procedure is valid for those solutions containing 20 to 2000 μg uranium per mL as presented to the spectrometer for the solution technique and 200 to 508201;000 μg uranium per g for the pellet technique.

1.3 This test method requires the use of an appropriate internal standard. Care must be taken to ascertain that samples analyzed by this test method do not contain the internal standard or that this contamination, whenever present, has been corrected for mathematically. Such corrections are not addressed in this procedure. Care must be taken that the internal standard and sample medium are compatible; that is, samples must be miscible with tri- n-butyl phosphate (TBP) and must not remove the internal standard from solution. Alternatively, a scatter line may be used as the internal standard.2

1.4 The values stated in SI units are to be regarded as the standard. The values 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 and health practices and determine the applicability of regulatory limitations prior to use. Specific precautionary statements are given in Section 9 and Note 2.

ASTM C1343-16 Referenced Document

• ASTM C1110 Standard Practice for Sample Preparation for X-Ray Emission Spectrometric Analysis of Uranium in Ores Using the Glass Fusion or Pressed Powder Method
• ASTM C1254 Standard Test Method for Determination of Uranium in Mineral Acids by X-Ray Fluorescence
• ASTM D1193 Standard Specification for Reagent Water
• ASTM E135 Standard Terminology Relating to Analytical Chemistry for Metals, Ores, and Related Materials

ASTM C1343-16 history

• 2016 ASTM C1343-16 Standard Test Method for Determination of Low Concentrations of Uranium in Oils and Organic Liquids by X-ray Fluorescence
• 2011 ASTM C1343-11 Standard Test Method for Determination of Low Concentrations of Uranium in Oils and Organic Liquids by X-ray Fluorescence
• 2007 ASTM C1343-96(2007) Standard Test Method for Determination of Low Concentrations of Uranium in Oils and Organic Liquids by X-ray Fluorescence
• 1996 ASTM C1343-96(2002) Standard Test Method for Determination of Low Concentrations of Uranium in Oils and Organic Liquids by X-ray Fluorescence
• 1996 ASTM C1343-96 Standard Test Method for Determination of Low Concentrations of Uranium in Oils and Organic Liquids by X-Ray Fluorescence