ASTM B – Download as PDF File .pdf), Text File .txt) or read online. ASTM B Standard Test Method for Measurement of Coating Thickness by X- Ray Spectrometry. 25 Jan Introduction to ASTM B; the “Standard Test Method for Measurement of Coating Thickness with X-Ray Spectrometry”. Overview provided by.
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ASTM B568 (measurement of coating thickness by XRF)
However, the ASTM B standard also details some variables that an operator may not think of; such as sample curvature, substrate composition, and surface cleanliness. Results are reported in a table with five or more readings per sample. Measuring coating thickness was one of the first applications of x-ray fluorescence spectrometry and is still one of the most common uses of the technology. This industry standard ASTM B should be reviewed by all operators of x-ray fluorescence because it offers a beneficial overview and highlights proper implementation of the technology.
Each element emits energy at a different wavelength so the plating and base material show separate peaks in the XRF spectrum. It also provides an overview of calibration techniques and best practices along with standard-less fundamental parameters calibrations. Cannot measure elements with an atomic weight less ast that of calcium. ASTM B X-Ray Fluorescence XRF astk a non-destructive method of measuring plating thickness by using an X-ray beam to excite the surface of a sample and then calculating the intensity of the energy returned by the plating versus the base material.
So, the majority of analyzer certifications that Eastern Applied Research technicians provide are for coating thickness applications and those certifications actually reference the ASTM Standard B This method is frequently used to measure gold thickness, platinum thickness, nickel thickness, or zinc thickness over metallic substrates. An increase in plating 5b68 results in a larger peak from the plating material and a smaller peak from the base material. The benefit to operators is that it details the variations in x-ray spectrometry systems and explains how XRF works with some terminology that may be useful.
Advanced Plastic and Material Testing, Inc. In all, thirteen 13 factors are highlighted and worth knowing about in case issues occur.
ASTM B – 98 Standard Test Method for Measurement of Coating Thickness by X-Ray Spectrometry
Material testing you can trust since A minimum area of 0. Our laboratory also provides laboratory services for plastic testingmetal testingrubber testingoil testingpaint testingplating testingadhesive testingcircuit board testingand other testing. Eastern Applied associates are available to help with safety radiation related questions and training if needed. It is important to note that ASTM B does not detail safety procedures relating to operation of x-ray spectrometry and refers the reader to the appropriate governing bodies and regulations.
Eastern Applied Research, Inc. Standards of known thickness are required to generate a calibration curve for each plating and base material combination.