ASTM D6247-18
Standard Test Method for Determination of Elemental Content of Polyolefins by Wavelength Dispersive X-ray Fluorescence Spectrometry

Standard No.

ASTM D6247-18

Release Date

2018

Published By

American Society for Testing and Materials (ASTM)

Latest

ASTM D6247-18

Scope

1.1 This test method covers a general procedure for the determination of elemental content in polyolefins by wavelength-dispersive X-ray fluorescence (WDXRF) spectrometry, in mass fraction ranges typical of those contributed by additives, catalysts, and reactor processes. The elements covered by this test method include fluorine, sodium, magnesium, aluminum, silicon, phosphorus, sulfur, calcium, titanium, chromium, and zinc in the composition ranges given in Table 1. TABLE 1 Mass Fraction Ranges for Additive and Trace Elements in Polyolefins Element Lower Limit (mg/kg) Upper Limit (mg/kg) Fluorine 100 300 Sodium 25 200 Magnesium 10 600 Aluminum 40 500 Silicon 30 1000 Phosphorus 5 200 Sulfur 20 200 Calcium 10 300 Titanium 5 200 Chromium 5 100 Zinc 10 1000 1.1.1 This test method does not apply to polymers specifically formulated to contain flame retardants including brominated compounds and antimony trioxide. 1.1.2 This test method does not apply to polymers formulated to contain high levels of compounds of vanadium, molybdenum, cadmium, tin, barium, lead, and mercury because the performance can be strongly influenced by spectral interferences or interelement effects due to these elements. NOTE 1—Specific methods and capabilities of users may vary with differences in interelement effects and sensitivities, instrumentation and applications software, and practices between laboratories. Development and use of test procedures to measure particular elements, mass fraction ranges or matrices is the responsibility of individual users. NOTE 2—One general method is outlined herein; alternative analytical practices can be followed, and are attached in notes, where appropriate. 1.2 The values stated in SI units are to be regarded as the standard. 1.3 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. Specific precautionary statements are given in Section 10. NOTE 3—There is no known ISO equivalent to this standard. 1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

ASTM D6247-18 Referenced Document

• ASTM C1118 Standard Guide for Selecting Components for Wavelength-Dispersive X-Ray Fluorescence (XRF) Systems
• ASTM D4703 Standard Practice for Compression Molding Thermoplastic Materials into Test Specimens, Plaques, or Sheets
• ASTM D883 Standard Terminology Relating to Plastics*， 2024-02-01 Update
• ASTM E135 Standard Terminology Relating to Analytical Chemistry for Metals, Ores, and Related Materials
• ASTM E1361 Standard Guide for Correction of Interelement Effects in X-Ray Spectrometric Analysis
• ASTM E1601 Standard Practice for Conducting an Interlaboratory Study to Evaluate the Performance of an Analytical Method
• ASTM E1621 Standard Guide for X-Ray Emission Spectrometric Analysis
• ASTM E29 Standard Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications

ASTM D6247-18 history

• 2018 ASTM D6247-18 Standard Test Method for Determination of Elemental Content of Polyolefins by Wavelength Dispersive X-ray Fluorescence Spectrometry
• 2010 ASTM D6247-10 Standard Test Method for Determination of Elemental Content of Polyolefins by Wavelength Dispersive X-ray Fluorescence Spectrometry
• 2004 ASTM D6247-98(2004) Standard Test Method for Analysis of Elemental Content in Polyolefins By X-Ray Fluorescence Spectrometry
• 1998 ASTM D6247-98 Standard Test Method for Analysis of Elemental Content in Polyolefins By X-Ray Fluorescence Spectrometry